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✏️ docs (🔨 examples, 🚧 events)

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<!DOCTYPE html><html><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1"><meta name="description" content="Basic concepts of elements modifications and creations."><title>`deka-dom-el` — Elements</title><!--<dde:mark type="component" name="metaAuthor" host="this" ssr/>--><meta name="author" content="Jan Andrle"><link type="text/plain" rel="author" href="https://jaandrle.github.io/humans.txt"><meta name="generator" content="deka-dom-el"><!--<dde:mark type="component" name="metaTwitter" host="this" ssr/>--><meta name="twitter:card" content="summary_large_image"><meta name="twitter:url" content="https://github.com/jaandrle/deka-dom-el"><meta name="twitter:title" content="deka-dom-el"><meta name="twitter:description" content="A low-code library that simplifies the creation of native DOM elements/components using small wrappers and tweaks."><meta name="twitter:creator" content="@jaandrle"><!--<dde:mark type="component" name="metaFacebook" host="this" ssr/>--><meta name="og:url" content="https://github.com/jaandrle/deka-dom-el"><meta name="og:title" content="deka-dom-el"><meta name="og:description" content="A low-code library that simplifies the creation of native DOM elements/components using small wrappers and tweaks."><meta name="og:creator" content="@jaandrle"><script src="https://flems.io/flems.html" type="text/javascript" charset="utf-8"></script><link rel="stylesheet" href="global.css"></head><body><!--<dde:mark type="component" name="page" host="this" ssr/>--><!--<dde:mark type="component" name="header" host="this" ssr/>--><header><h1>`deka-dom-el` — Elements</h1><p>Basic concepts of elements modifications and creations.</p></header><nav><a href="https://github.com/jaandrle/deka-dom-el"><svg class="icon" viewBox="0 0 32 32"><!--<dde:mark type="component" name="iconGitHub" host="parentElement" ssr/>--><path d="M 16,0.395c -8.836,0 -16,7.163 -16,16c 0,7.069 4.585,13.067 10.942,15.182c 0.8,0.148 1.094,-0.347 1.094,-0.77c 0,-0.381 -0.015,-1.642 -0.022,-2.979c -4.452,0.968 -5.391,-1.888 -5.391,-1.888c -0.728,-1.849 -1.776,-2.341 -1.776,-2.341c -1.452,-0.993 0.11,-0.973 0.11,-0.973c 1.606,0.113 2.452,1.649 2.452,1.649c 1.427,2.446 3.743,1.739 4.656,1.33c 0.143,-1.034 0.558,-1.74 1.016,-2.14c -3.554,-0.404 -7.29,-1.777 -7.29,-7.907c 0,-1.747 0.625,-3.174 1.649,-4.295c -0.166,-0.403 -0.714,-2.03 0.155,-4.234c 0,0 1.344,-0.43 4.401,1.64c 1.276,-0.355 2.645,-0.532 4.005,-0.539c 1.359,0.006 2.729,0.184 4.008,0.539c 3.054,-2.07 4.395,-1.64 4.395,-1.64c 0.871,2.204 0.323,3.831 0.157,4.234c 1.026,1.12 1.647,2.548 1.647,4.295c 0,6.145 -3.743,7.498 -7.306,7.895c 0.574,0.497 1.085,1.47 1.085,2.963c 0,2.141 -0.019,3.864 -0.019,4.391c 0,0.426 0.288,0.925 1.099,0.768c 6.354,-2.118 10.933,-8.113 10.933,-15.18c 0,-8.837 -7.164,-16 -16,-16Z"></path></svg>GitHub</a><a href="./" title="Introducing a&nbsp;library.">1. Introduction</a><a href="elements" title="Basic concepts of elements modifications and creations." class="current">2. Elements</a><a href="events" title="Using not only events in UI declaratively.">3. Events and Modifiers</a></nav><main><h2>Native JavaScript DOM elements creations</h2><p>Let’s go through all patterns we would like to use and what needs to be improved for better experience.</p><h3>Creating element(s) (with custom attributes)</h3><p>You can create a native DOM element by using the <a href="https://developer.mozilla.org/en-US/docs/Web/API/Document/createElement" title="MDN documentation for document.createElement()"><code>document.createElement()</code></a>. It is also possible to provide a&nbsp;some attribute(s) declaratively using <code>Object.assign()</code>. More precisely, this way you can sets some <a href="https://developer.mozilla.org/en-US/docs/Glossary/IDL" title="MDN page about Interface Description Language"><abbr title="Interface Description Language">IDL</abbr></a> also known as a JavaScript property.</p><!--<dde:mark type="component" name="example" host="this" ssr/>--><div id="code-upjw9" class="example"><!--<dde:mark type="component" name="code" host="parentElement" ssr/>--><code class="language-js">document.body.append( <!DOCTYPE html><html><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1"><meta name="description" content="Basic concepts of elements modifications and creations."><title>`deka-dom-el` — Elements</title><!--<dde:mark type="component" name="metaAuthor" host="this" ssr/>--><meta name="author" content="Jan Andrle"><link type="text/plain" rel="author" href="https://jaandrle.github.io/humans.txt"><meta name="generator" content="deka-dom-el"><!--<dde:mark type="component" name="metaTwitter" host="this" ssr/>--><meta name="twitter:card" content="summary_large_image"><meta name="twitter:url" content="https://github.com/jaandrle/deka-dom-el"><meta name="twitter:title" content="deka-dom-el"><meta name="twitter:description" content="A low-code library that simplifies the creation of native DOM elements/components using small wrappers and tweaks."><meta name="twitter:creator" content="@jaandrle"><!--<dde:mark type="component" name="metaFacebook" host="this" ssr/>--><meta name="og:url" content="https://github.com/jaandrle/deka-dom-el"><meta name="og:title" content="deka-dom-el"><meta name="og:description" content="A low-code library that simplifies the creation of native DOM elements/components using small wrappers and tweaks."><meta name="og:creator" content="@jaandrle"><script src="https://flems.io/flems.html" type="text/javascript" charset="utf-8"></script><link rel="stylesheet" href="global.css"></head><body><!--<dde:mark type="component" name="page" host="this" ssr/>--><!--<dde:mark type="component" name="header" host="this" ssr/>--><header><h1>`deka-dom-el` — Elements</h1><p>Basic concepts of elements modifications and creations.</p></header><nav><a href="https://github.com/jaandrle/deka-dom-el"><svg class="icon" viewBox="0 0 32 32"><!--<dde:mark type="component" name="iconGitHub" host="parentElement" ssr/>--><path d="M 16,0.395c -8.836,0 -16,7.163 -16,16c 0,7.069 4.585,13.067 10.942,15.182c 0.8,0.148 1.094,-0.347 1.094,-0.77c 0,-0.381 -0.015,-1.642 -0.022,-2.979c -4.452,0.968 -5.391,-1.888 -5.391,-1.888c -0.728,-1.849 -1.776,-2.341 -1.776,-2.341c -1.452,-0.993 0.11,-0.973 0.11,-0.973c 1.606,0.113 2.452,1.649 2.452,1.649c 1.427,2.446 3.743,1.739 4.656,1.33c 0.143,-1.034 0.558,-1.74 1.016,-2.14c -3.554,-0.404 -7.29,-1.777 -7.29,-7.907c 0,-1.747 0.625,-3.174 1.649,-4.295c -0.166,-0.403 -0.714,-2.03 0.155,-4.234c 0,0 1.344,-0.43 4.401,1.64c 1.276,-0.355 2.645,-0.532 4.005,-0.539c 1.359,0.006 2.729,0.184 4.008,0.539c 3.054,-2.07 4.395,-1.64 4.395,-1.64c 0.871,2.204 0.323,3.831 0.157,4.234c 1.026,1.12 1.647,2.548 1.647,4.295c 0,6.145 -3.743,7.498 -7.306,7.895c 0.574,0.497 1.085,1.47 1.085,2.963c 0,2.141 -0.019,3.864 -0.019,4.391c 0,0.426 0.288,0.925 1.099,0.768c 6.354,-2.118 10.933,-8.113 10.933,-15.18c 0,-8.837 -7.164,-16 -16,-16Z"></path></svg>GitHub</a><a href="./" title="Introducing a&nbsp;library.">1. Introduction</a><a href="elements" title="Basic concepts of elements modifications and creations." class="current">2. Elements</a><a href="events" title="Using not only events in UI declaratively.">3. Events and Modifiers</a></nav><main><h2>Native JavaScript DOM elements creations</h2><p>Let’s go through all patterns we would like to use and what needs to be improved for better experience.</p><h3>Creating element(s) (with custom attributes)</h3><p>You can create a native DOM element by using the <a href="https://developer.mozilla.org/en-US/docs/Web/API/Document/createElement" title="MDN documentation for document.createElement()"><code>document.createElement()</code></a>. It is also possible to provide a&nbsp;some attribute(s) declaratively using <code>Object.assign()</code>. More precisely, this way you can sets some <a href="https://developer.mozilla.org/en-US/docs/Glossary/IDL" title="MDN page about Interface Description Language"><abbr title="Interface Description Language">IDL</abbr></a> also known as a JavaScript property.</p><!--<dde:mark type="component" name="example" host="this" ssr/>--><div id="code-2gwrc" class="example"><!--<dde:mark type="component" name="code" host="parentElement" ssr/>--><code class="language-js">document.body.append(
document.createElement("div") document.createElement("div")
); );
console.log( console.log(
@ -12,7 +12,7 @@ document.body.append(
{ textContent: "Element’s text content.", style: "color: coral;" } { textContent: "Element’s text content.", style: "color: coral;" }
) )
); );
</code></div><script>Flems(document.getElementById("code-upjw9"), JSON.parse("{\"files\":[{\"name\":\".js\",\"content\":\"document.body.append(\\n\\tdocument.createElement(\\\"div\\\")\\n);\\nconsole.log(\\n\\t\\\"Emty div is generated inside <body>:\\\",\\n\\tdocument.body.innerHTML.includes(\\\"<div></div>\\\")\\n);\\n\\ndocument.body.append(\\n\\tObject.assign(\\n\\t\\tdocument.createElement(\\\"p\\\"),\\n\\t\\t{ textContent: \\\"Element’s text content.\\\", style: \\\"color: coral;\\\" }\\n\\t)\\n);\\n\"}],\"toolbar\":false}"));</script><p>To make this easier, you can use the <code>el</code> function. Internally in basic examples, it is wrapper around <code>assign(document.createElement(…), { … })</code>.</p><!--<dde:mark type="component" name="example" host="this" ssr/>--><div id="code-k2tri" class="example"><!--<dde:mark type="component" name="code" host="parentElement" ssr/>--><code class="language-js">import { el, assign } from "https://cdn.jsdelivr.net/gh/jaandrle/deka-dom-el/dist/esm-with-signals.js"; </code></div><script>Flems(document.getElementById("code-2gwrc"), JSON.parse("{\"files\":[{\"name\":\".js\",\"content\":\"document.body.append(\\n\\tdocument.createElement(\\\"div\\\")\\n);\\nconsole.log(\\n\\t\\\"Emty div is generated inside <body>:\\\",\\n\\tdocument.body.innerHTML.includes(\\\"<div></div>\\\")\\n);\\n\\ndocument.body.append(\\n\\tObject.assign(\\n\\t\\tdocument.createElement(\\\"p\\\"),\\n\\t\\t{ textContent: \\\"Element’s text content.\\\", style: \\\"color: coral;\\\" }\\n\\t)\\n);\\n\"}],\"toolbar\":false}"));</script><p>To make this easier, you can use the <code>el</code> function. Internally in basic examples, it is wrapper around <code>assign(document.createElement(…), { … })</code>.</p><!--<dde:mark type="component" name="example" host="this" ssr/>--><div id="code-iwf5c" class="example"><!--<dde:mark type="component" name="code" host="parentElement" ssr/>--><code class="language-js">import { el, assign } from "https://cdn.jsdelivr.net/gh/jaandrle/deka-dom-el/dist/esm-with-signals.js";
const color= "lightcoral"; const color= "lightcoral";
document.body.append( document.body.append(
el("p", { textContent: "Hello (first time)", style: { color } }) el("p", { textContent: "Hello (first time)", style: { color } })
@ -23,7 +23,7 @@ document.body.append(
{ textContent: "Hello (second time)", style: { color } } { textContent: "Hello (second time)", style: { color } }
) )
); );
</code></div><script>Flems(document.getElementById("code-k2tri"), JSON.parse("{\"files\":[{\"name\":\".js\",\"content\":\"import { el, assign } from \\\"https://cdn.jsdelivr.net/gh/jaandrle/deka-dom-el/dist/esm-with-signals.js\\\";\\nconst color= \\\"lightcoral\\\";\\ndocument.body.append(\\n\\tel(\\\"p\\\", { textContent: \\\"Hello (first time)\\\", style: { color } })\\n);\\ndocument.body.append(\\n\\tassign(\\n\\t\\tdocument.createElement(\\\"p\\\"),\\n\\t\\t{ textContent: \\\"Hello (second time)\\\", style: { color } }\\n\\t)\\n);\\n\"}],\"toolbar\":false}"));</script><p>The <code>assign</code> function provides improved behaviour of <code>Object.assign()</code>. You can declaratively sets any IDL and attribute of the given element. Function prefers IDL and fallback to the <code>element.setAttribute</code> if there is no writable property in the element prototype.</p><p>You can study all JavaScript elements interfaces to the corresponding HTML elements. All HTML elements inherits from <a href="https://developer.mozilla.org/en-US/docs/Web/API/HTMLElement">HTMLElement</a>. To see all available IDLs for example for paragraphs, see <a href="https://developer.mozilla.org/en-US/docs/Web/API/HTMLParagraphElement">HTMLParagraphElement</a>. Moreover, the <code>assign</code> provides a&nbsp;way to sets declaratively some convenient properties:</p><ul><li>It is possible to sets <code>data-*</code>/<code>aria-*</code> attributes using object notation.</li><li>In opposite, it is also possible to sets <code>data-*</code>/<code>aria-*</code> attribute using camelCase notation.</li><li>You can use string or object as a&nbsp;value for <code>style</code> property.</li><li><code>className</code> (IDL – preffered)/<code>class</code> are ways to add CSS class to the element. You can use string (similarly to <code>class="…"</code> syntax in HTML) or array of strings. This is handy to concat conditional classes.</li><li>Use <code>classList</code> to toggle specific classes. This will be handy later when the reactivity via signals is beeing introduced.</li><li>The <code>assign</code> also accepts the <code>undefined</code> as a&nbsp;value for any property to remove it from the element declaratively. Also for some IDL the corresponding attribute is removed as it can be confusing. <em>For example, natievly the element’s <code>id</code> is removed by setting the IDL to an empty string.</em></li></ul><p>For processing, the <code>assign</code> internally uses <code>assignAttribute</code> and <code>classListDeclarative</code>.</p><!--<dde:mark type="component" name="example" host="this" ssr/>--><div id="code-1pz42" class="example"><!--<dde:mark type="component" name="code" host="parentElement" ssr/>--><code class="language-js">import { assignAttribute, classListDeclarative } from "https://cdn.jsdelivr.net/gh/jaandrle/deka-dom-el/dist/esm-with-signals.js"; </code></div><script>Flems(document.getElementById("code-iwf5c"), JSON.parse("{\"files\":[{\"name\":\".js\",\"content\":\"import { el, assign } from \\\"https://cdn.jsdelivr.net/gh/jaandrle/deka-dom-el/dist/esm-with-signals.js\\\";\\nconst color= \\\"lightcoral\\\";\\ndocument.body.append(\\n\\tel(\\\"p\\\", { textContent: \\\"Hello (first time)\\\", style: { color } })\\n);\\ndocument.body.append(\\n\\tassign(\\n\\t\\tdocument.createElement(\\\"p\\\"),\\n\\t\\t{ textContent: \\\"Hello (second time)\\\", style: { color } }\\n\\t)\\n);\\n\"}],\"toolbar\":false}"));</script><p>The <code>assign</code> function provides improved behaviour of <code>Object.assign()</code>. You can declaratively sets any IDL and attribute of the given element. Function prefers IDL and fallback to the <code>element.setAttribute</code> if there is no writable property in the element prototype.</p><p>You can study all JavaScript elements interfaces to the corresponding HTML elements. All HTML elements inherits from <a href="https://developer.mozilla.org/en-US/docs/Web/API/HTMLElement">HTMLElement</a>. To see all available IDLs for example for paragraphs, see <a href="https://developer.mozilla.org/en-US/docs/Web/API/HTMLParagraphElement">HTMLParagraphElement</a>. Moreover, the <code>assign</code> provides a&nbsp;way to sets declaratively some convenient properties:</p><ul><li>It is possible to sets <code>data-*</code>/<code>aria-*</code> attributes using object notation.</li><li>In opposite, it is also possible to sets <code>data-*</code>/<code>aria-*</code> attribute using camelCase notation.</li><li>You can use string or object as a&nbsp;value for <code>style</code> property.</li><li><code>className</code> (IDL – preffered)/<code>class</code> are ways to add CSS class to the element. You can use string (similarly to <code>class="…"</code> syntax in HTML) or array of strings. This is handy to concat conditional classes.</li><li>Use <code>classList</code> to toggle specific classes. This will be handy later when the reactivity via signals is beeing introduced.</li><li>The <code>assign</code> also accepts the <code>undefined</code> as a&nbsp;value for any property to remove it from the element declaratively. Also for some IDL the corresponding attribute is removed as it can be confusing. <em>For example, natievly the element’s <code>id</code> is removed by setting the IDL to an empty string.</em></li></ul><p>For processing, the <code>assign</code> internally uses <code>assignAttribute</code> and <code>classListDeclarative</code>.</p><!--<dde:mark type="component" name="example" host="this" ssr/>--><div id="code-flx0r" class="example"><!--<dde:mark type="component" name="code" host="parentElement" ssr/>--><code class="language-js">import { assignAttribute, classListDeclarative } from "https://cdn.jsdelivr.net/gh/jaandrle/deka-dom-el/dist/esm-with-signals.js";
const paragraph= document.createElement("p"); const paragraph= document.createElement("p");
assignAttribute(paragraph, "textContent", "Hello, world!"); assignAttribute(paragraph, "textContent", "Hello, world!");
@ -48,7 +48,7 @@ console.log(paragraph.outerHTML);
document.body.append( document.body.append(
paragraph paragraph
); );
</code></div><script>Flems(document.getElementById("code-1pz42"), JSON.parse("{\"files\":[{\"name\":\".js\",\"content\":\"import { assignAttribute, classListDeclarative } from \\\"https://cdn.jsdelivr.net/gh/jaandrle/deka-dom-el/dist/esm-with-signals.js\\\";\\nconst paragraph= document.createElement(\\\"p\\\");\\n\\nassignAttribute(paragraph, \\\"textContent\\\", \\\"Hello, world!\\\");\\nassignAttribute(paragraph, \\\"style\\\", { color: \\\"navy\\\" });\\n\\nassignAttribute(paragraph, \\\"dataTest1\\\", \\\"v1\\\");\\nassignAttribute(paragraph, \\\"dataset\\\", { test2: \\\"v2\\\" });\\n\\nassignAttribute(paragraph, \\\"ariaLabel\\\", \\\"v1\\\");\\nassignAttribute(paragraph, \\\"ariaset\\\", { role: \\\"none\\\" });\\n\\n\\nclassListDeclarative(paragraph, {\\n\\tclassAdd: true,\\n\\tclassRemove: false,\\n\\tclassAdd1: 1,\\n\\tclassRemove1: 0,\\n\\tclassToggle: -1\\n});\\n\\nconsole.log(paragraph.outerHTML);\\ndocument.body.append(\\n\\tparagraph\\n);\\n\"}],\"toolbar\":false}"));</script><h3>Native JavaScript templating</h3><p>By default, the native JS has no good way to define HTML template using DOM API:</p><!--<dde:mark type="component" name="example" host="this" ssr/>--><div id="code-vj7hf" class="example"><!--<dde:mark type="component" name="code" host="parentElement" ssr/>--><code class="language-js">document.body.append( </code></div><script>Flems(document.getElementById("code-flx0r"), JSON.parse("{\"files\":[{\"name\":\".js\",\"content\":\"import { assignAttribute, classListDeclarative } from \\\"https://cdn.jsdelivr.net/gh/jaandrle/deka-dom-el/dist/esm-with-signals.js\\\";\\nconst paragraph= document.createElement(\\\"p\\\");\\n\\nassignAttribute(paragraph, \\\"textContent\\\", \\\"Hello, world!\\\");\\nassignAttribute(paragraph, \\\"style\\\", { color: \\\"navy\\\" });\\n\\nassignAttribute(paragraph, \\\"dataTest1\\\", \\\"v1\\\");\\nassignAttribute(paragraph, \\\"dataset\\\", { test2: \\\"v2\\\" });\\n\\nassignAttribute(paragraph, \\\"ariaLabel\\\", \\\"v1\\\");\\nassignAttribute(paragraph, \\\"ariaset\\\", { role: \\\"none\\\" });\\n\\n\\nclassListDeclarative(paragraph, {\\n\\tclassAdd: true,\\n\\tclassRemove: false,\\n\\tclassAdd1: 1,\\n\\tclassRemove1: 0,\\n\\tclassToggle: -1\\n});\\n\\nconsole.log(paragraph.outerHTML);\\ndocument.body.append(\\n\\tparagraph\\n);\\n\"}],\"toolbar\":false}"));</script><h3>Native JavaScript templating</h3><p>By default, the native JS has no good way to define HTML template using DOM API:</p><!--<dde:mark type="component" name="example" host="this" ssr/>--><div id="code-1v0cx" class="example"><!--<dde:mark type="component" name="code" host="parentElement" ssr/>--><code class="language-js">document.body.append(
document.createElement("div"), document.createElement("div"),
document.createElement("span"), document.createElement("span"),
document.createElement("main") document.createElement("main")
@ -59,7 +59,7 @@ const template= document.createElement("main").append(
document.createElement("span"), document.createElement("span"),
); );
console.log(typeof template==="undefined"); console.log(typeof template==="undefined");
</code></div><script>Flems(document.getElementById("code-vj7hf"), JSON.parse("{\"files\":[{\"name\":\".js\",\"content\":\"document.body.append(\\n\\tdocument.createElement(\\\"div\\\"),\\n\\tdocument.createElement(\\\"span\\\"),\\n\\tdocument.createElement(\\\"main\\\")\\n);\\nconsole.log(document.body.innerHTML.includes(\\\"<div></div><span></span><main></main>\\\"));\\nconst template= document.createElement(\\\"main\\\").append(\\n\\tdocument.createElement(\\\"div\\\"),\\n\\tdocument.createElement(\\\"span\\\"),\\n);\\nconsole.log(typeof template===\\\"undefined\\\");\\n\"}],\"toolbar\":false}"));</script><p>This library therefore overwrites the <code>append</code> method of created elements to always return parent element.</p><!--<dde:mark type="component" name="example" host="this" ssr/>--><div id="code-tzkwh" class="example"><!--<dde:mark type="component" name="code" host="parentElement" ssr/>--><code class="language-js">import { el } from "https://cdn.jsdelivr.net/gh/jaandrle/deka-dom-el/dist/esm-with-signals.js"; </code></div><script>Flems(document.getElementById("code-1v0cx"), JSON.parse("{\"files\":[{\"name\":\".js\",\"content\":\"document.body.append(\\n\\tdocument.createElement(\\\"div\\\"),\\n\\tdocument.createElement(\\\"span\\\"),\\n\\tdocument.createElement(\\\"main\\\")\\n);\\nconsole.log(document.body.innerHTML.includes(\\\"<div></div><span></span><main></main>\\\"));\\nconst template= document.createElement(\\\"main\\\").append(\\n\\tdocument.createElement(\\\"div\\\"),\\n\\tdocument.createElement(\\\"span\\\"),\\n);\\nconsole.log(typeof template===\\\"undefined\\\");\\n\"}],\"toolbar\":false}"));</script><p>This library therefore overwrites the <code>append</code> method of created elements to always return parent element.</p><!--<dde:mark type="component" name="example" host="this" ssr/>--><div id="code-zxysq" class="example"><!--<dde:mark type="component" name="code" host="parentElement" ssr/>--><code class="language-js">import { el } from "https://cdn.jsdelivr.net/gh/jaandrle/deka-dom-el/dist/esm-with-signals.js";
document.head.append( document.head.append(
el("style").append( el("style").append(
"tr, td{ border: 1px solid red; padding: 1em; }", "tr, td{ border: 1px solid red; padding: 1em; }",
@ -83,7 +83,7 @@ document.body.append(
) )
) )
); );
</code></div><script>Flems(document.getElementById("code-tzkwh"), JSON.parse("{\"files\":[{\"name\":\".js\",\"content\":\"import { el } from \\\"https://cdn.jsdelivr.net/gh/jaandrle/deka-dom-el/dist/esm-with-signals.js\\\";\\ndocument.head.append(\\n\\tel(\\\"style\\\").append(\\n\\t\\t\\\"tr, td{ border: 1px solid red; padding: 1em; }\\\",\\n\\t\\t\\\"table{ border-collapse: collapse; }\\\"\\n\\t)\\n);\\ndocument.body.append(\\n\\tel(\\\"p\\\", \\\"Example of a complex template. Using for example nesting lists:\\\"),\\n\\tel(\\\"ul\\\").append(\\n\\t\\tel(\\\"li\\\", \\\"List item 1\\\"),\\n\\t\\tel(\\\"li\\\").append(\\n\\t\\t\\tel(\\\"ul\\\").append(\\n\\t\\t\\t\\tel(\\\"li\\\", \\\"Nested list item 1\\\"),\\n\\t\\t\\t)\\n\\t\\t)\\n\\t),\\n\\tel(\\\"table\\\").append(\\n\\t\\tel(\\\"tr\\\").append(\\n\\t\\t\\tel(\\\"td\\\", \\\"Row 1 – Col 1\\\"),\\n\\t\\t\\tel(\\\"td\\\", \\\"Row 1 – Col 2\\\")\\n\\t\\t)\\n\\t)\\n);\\n\"}],\"toolbar\":false}"));</script><h3>Basic (state-less) components</h3><p>You can use functions for encapsulation (repeating) logic. The <code>el</code> accepts function as first argument. In that case, the function should return dom elements and the second argument for <code>el</code> is argument for given element.</p><!--<dde:mark type="component" name="example" host="this" ssr/>--><div id="code-xhvx1" class="example"><!--<dde:mark type="component" name="code" host="parentElement" ssr/>--><code class="language-js">import { el } from "https://cdn.jsdelivr.net/gh/jaandrle/deka-dom-el/dist/esm-with-signals.js"; </code></div><script>Flems(document.getElementById("code-zxysq"), JSON.parse("{\"files\":[{\"name\":\".js\",\"content\":\"import { el } from \\\"https://cdn.jsdelivr.net/gh/jaandrle/deka-dom-el/dist/esm-with-signals.js\\\";\\ndocument.head.append(\\n\\tel(\\\"style\\\").append(\\n\\t\\t\\\"tr, td{ border: 1px solid red; padding: 1em; }\\\",\\n\\t\\t\\\"table{ border-collapse: collapse; }\\\"\\n\\t)\\n);\\ndocument.body.append(\\n\\tel(\\\"p\\\", \\\"Example of a complex template. Using for example nesting lists:\\\"),\\n\\tel(\\\"ul\\\").append(\\n\\t\\tel(\\\"li\\\", \\\"List item 1\\\"),\\n\\t\\tel(\\\"li\\\").append(\\n\\t\\t\\tel(\\\"ul\\\").append(\\n\\t\\t\\t\\tel(\\\"li\\\", \\\"Nested list item 1\\\"),\\n\\t\\t\\t)\\n\\t\\t)\\n\\t),\\n\\tel(\\\"table\\\").append(\\n\\t\\tel(\\\"tr\\\").append(\\n\\t\\t\\tel(\\\"td\\\", \\\"Row 1 – Col 1\\\"),\\n\\t\\t\\tel(\\\"td\\\", \\\"Row 1 – Col 2\\\")\\n\\t\\t)\\n\\t)\\n);\\n\"}],\"toolbar\":false}"));</script><h3>Basic (state-less) components</h3><p>You can use functions for encapsulation (repeating) logic. The <code>el</code> accepts function as first argument. In that case, the function should return dom elements and the second argument for <code>el</code> is argument for given element.</p><!--<dde:mark type="component" name="example" host="this" ssr/>--><div id="code-pplbf" class="example"><!--<dde:mark type="component" name="code" host="parentElement" ssr/>--><code class="language-js">import { el } from "https://cdn.jsdelivr.net/gh/jaandrle/deka-dom-el/dist/esm-with-signals.js";
document.head.append( document.head.append(
el("style").append( el("style").append(
".class1{ font-weight: bold; }", ".class1{ font-weight: bold; }",
@ -100,7 +100,7 @@ function component({ className, textContent }){
el("p", textContent) el("p", textContent)
); );
} }
</code></div><script>Flems(document.getElementById("code-xhvx1"), JSON.parse("{\"files\":[{\"name\":\".js\",\"content\":\"import { el } from \\\"https://cdn.jsdelivr.net/gh/jaandrle/deka-dom-el/dist/esm-with-signals.js\\\";\\ndocument.head.append(\\n\\tel(\\\"style\\\").append(\\n\\t\\t\\\".class1{ font-weight: bold; }\\\",\\n\\t\\t\\\".class2{ color: purple; }\\\"\\n\\t)\\n);\\ndocument.body.append(\\n\\tel(component, { className: \\\"class2\\\", textContent: \\\"Hello World!\\\" }),\\n\\tcomponent({ className: \\\"class2\\\", textContent: \\\"Hello World!\\\" })\\n);\\n\\nfunction component({ className, textContent }){\\n\\treturn el(\\\"div\\\", { className: [ \\\"class1\\\", className ] }).append(\\n\\t\\tel(\\\"p\\\", textContent)\\n\\t);\\n}\\n\"}],\"toolbar\":false}"));</script><p>As you can see, in case of state-less/basic components there is no difference between calling component function directly or using <code>el</code> function.</p><p class="notice">It is nice to use similar naming convention as native DOM API. This allows us to use <a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Destructuring_assignment" title="Destructuring assignment | MDN">the destructuring assignment syntax</a> and keep track of the native API (things are best remembered through regular use).</p><h3>Creating non-HTML elements</h3><p>Similarly to the native DOM API (<a href="https://developer.mozilla.org/en-US/docs/Web/API/Document/createElementNS" title="MDN"><code>document.createElementNS</code></a>) for non-HTML elements we need to tell JavaScript which kind of the element to create. We can use the <code>elNS</code> function:</p><!--<dde:mark type="component" name="example" host="this" ssr/>--><div id="code-h8j0w" class="example"><!--<dde:mark type="component" name="code" host="parentElement" ssr/>--><code class="language-js">import { elNS, assign } from "https://cdn.jsdelivr.net/gh/jaandrle/deka-dom-el/dist/esm-with-signals.js"; </code></div><script>Flems(document.getElementById("code-pplbf"), JSON.parse("{\"files\":[{\"name\":\".js\",\"content\":\"import { el } from \\\"https://cdn.jsdelivr.net/gh/jaandrle/deka-dom-el/dist/esm-with-signals.js\\\";\\ndocument.head.append(\\n\\tel(\\\"style\\\").append(\\n\\t\\t\\\".class1{ font-weight: bold; }\\\",\\n\\t\\t\\\".class2{ color: purple; }\\\"\\n\\t)\\n);\\ndocument.body.append(\\n\\tel(component, { className: \\\"class2\\\", textContent: \\\"Hello World!\\\" }),\\n\\tcomponent({ className: \\\"class2\\\", textContent: \\\"Hello World!\\\" })\\n);\\n\\nfunction component({ className, textContent }){\\n\\treturn el(\\\"div\\\", { className: [ \\\"class1\\\", className ] }).append(\\n\\t\\tel(\\\"p\\\", textContent)\\n\\t);\\n}\\n\"}],\"toolbar\":false}"));</script><p>As you can see, in case of state-less/basic components there is no difference between calling component function directly or using <code>el</code> function.</p><p class="notice">It is nice to use similar naming convention as native DOM API. This allows us to use <a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Destructuring_assignment" title="Destructuring assignment | MDN">the destructuring assignment syntax</a> and keep track of the native API (things are best remembered through regular use).</p><h3>Creating non-HTML elements</h3><p>Similarly to the native DOM API (<a href="https://developer.mozilla.org/en-US/docs/Web/API/Document/createElementNS" title="MDN"><code>document.createElementNS</code></a>) for non-HTML elements we need to tell JavaScript which kind of the element to create. We can use the <code>elNS</code> function:</p><!--<dde:mark type="component" name="example" host="this" ssr/>--><div id="code-d8utn" class="example"><!--<dde:mark type="component" name="code" host="parentElement" ssr/>--><code class="language-js">import { elNS, assign } from "https://cdn.jsdelivr.net/gh/jaandrle/deka-dom-el/dist/esm-with-signals.js";
const elSVG= elNS("http://www.w3.org/2000/svg"); const elSVG= elNS("http://www.w3.org/2000/svg");
const elMath= elNS("http://www.w3.org/1998/Math/MathML"); const elMath= elNS("http://www.w3.org/1998/Math/MathML");
document.body.append( document.body.append(
@ -111,4 +111,4 @@ document.body.append(
console.log( console.log(
document.body.innerHTML.includes("&lt;svg&gt;&lt;/svg&gt;&lt;math&gt;&lt;/math&gt;") document.body.innerHTML.includes("&lt;svg&gt;&lt;/svg&gt;&lt;math&gt;&lt;/math&gt;")
) )
</code></div><script>Flems(document.getElementById("code-h8j0w"), JSON.parse("{\"files\":[{\"name\":\".js\",\"content\":\"import { elNS, assign } from \\\"https://cdn.jsdelivr.net/gh/jaandrle/deka-dom-el/dist/esm-with-signals.js\\\";\\nconst elSVG= elNS(\\\"http://www.w3.org/2000/svg\\\");\\nconst elMath= elNS(\\\"http://www.w3.org/1998/Math/MathML\\\");\\ndocument.body.append(\\n\\telSVG(\\\"svg\\\"), // see https://developer.mozilla.org/en-US/docs/Web/SVG and https://developer.mozilla.org/en-US/docs/Web/API/SVGElement\\n\\telMath(\\\"math\\\") // see https://developer.mozilla.org/en-US/docs/Web/MathML and https://developer.mozilla.org/en-US/docs/Web/MathML/Global_attributes\\n);\\n\\nconsole.log(\\n\\tdocument.body.innerHTML.includes(\\\"<svg></svg><math></math>\\\")\\n)\\n\"}],\"toolbar\":false}"));</script><div class="prevNext"><!--<dde:mark type="component" name="prevNext" host="parentElement" ssr/>--><a rel="prev" href="./" title="Introducing a&nbsp;library."><!--<dde:mark type="component" name="pageLink" host="parentElement" ssr/>-->Introduction (previous)</a><a rel="next" href="events" title="Using not only events in UI declaratively."><!--<dde:mark type="component" name="pageLink" host="parentElement" ssr/>-->(next) Events and Modifiers</a></div></main></body></html> </code></div><script>Flems(document.getElementById("code-d8utn"), JSON.parse("{\"files\":[{\"name\":\".js\",\"content\":\"import { elNS, assign } from \\\"https://cdn.jsdelivr.net/gh/jaandrle/deka-dom-el/dist/esm-with-signals.js\\\";\\nconst elSVG= elNS(\\\"http://www.w3.org/2000/svg\\\");\\nconst elMath= elNS(\\\"http://www.w3.org/1998/Math/MathML\\\");\\ndocument.body.append(\\n\\telSVG(\\\"svg\\\"), // see https://developer.mozilla.org/en-US/docs/Web/SVG and https://developer.mozilla.org/en-US/docs/Web/API/SVGElement\\n\\telMath(\\\"math\\\") // see https://developer.mozilla.org/en-US/docs/Web/MathML and https://developer.mozilla.org/en-US/docs/Web/MathML/Global_attributes\\n);\\n\\nconsole.log(\\n\\tdocument.body.innerHTML.includes(\\\"<svg></svg><math></math>\\\")\\n)\\n\"}],\"toolbar\":false}"));</script><div class="prevNext"><!--<dde:mark type="component" name="prevNext" host="parentElement" ssr/>--><a rel="prev" href="./" title="Introducing a&nbsp;library."><!--<dde:mark type="component" name="pageLink" host="parentElement" ssr/>-->Introduction (previous)</a><a rel="next" href="events" title="Using not only events in UI declaratively."><!--<dde:mark type="component" name="pageLink" host="parentElement" ssr/>-->(next) Events and Modifiers</a></div></main></body></html>

49
docs/events.html
View File

@ -1 +1,48 @@
<!DOCTYPE html><html><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1"><meta name="description" content="Using not only events in UI declaratively."><title>`deka-dom-el` — Events and Modifiers</title><!--<dde:mark type="component" name="metaAuthor" host="this" ssr/>--><meta name="author" content="Jan Andrle"><link type="text/plain" rel="author" href="https://jaandrle.github.io/humans.txt"><meta name="generator" content="deka-dom-el"><!--<dde:mark type="component" name="metaTwitter" host="this" ssr/>--><meta name="twitter:card" content="summary_large_image"><meta name="twitter:url" content="https://github.com/jaandrle/deka-dom-el"><meta name="twitter:title" content="deka-dom-el"><meta name="twitter:description" content="A low-code library that simplifies the creation of native DOM elements/components using small wrappers and tweaks."><meta name="twitter:creator" content="@jaandrle"><!--<dde:mark type="component" name="metaFacebook" host="this" ssr/>--><meta name="og:url" content="https://github.com/jaandrle/deka-dom-el"><meta name="og:title" content="deka-dom-el"><meta name="og:description" content="A low-code library that simplifies the creation of native DOM elements/components using small wrappers and tweaks."><meta name="og:creator" content="@jaandrle"><link rel="stylesheet" href="global.css"></head><body><!--<dde:mark type="component" name="page" host="this" ssr/>--><!--<dde:mark type="component" name="header" host="this" ssr/>--><header><h1>`deka-dom-el` — Events and Modifiers</h1><p>Using not only events in UI declaratively.</p></header><nav><a href="https://github.com/jaandrle/deka-dom-el"><svg class="icon" viewBox="0 0 32 32"><!--<dde:mark type="component" name="iconGitHub" host="parentElement" ssr/>--><path d="M 16,0.395c -8.836,0 -16,7.163 -16,16c 0,7.069 4.585,13.067 10.942,15.182c 0.8,0.148 1.094,-0.347 1.094,-0.77c 0,-0.381 -0.015,-1.642 -0.022,-2.979c -4.452,0.968 -5.391,-1.888 -5.391,-1.888c -0.728,-1.849 -1.776,-2.341 -1.776,-2.341c -1.452,-0.993 0.11,-0.973 0.11,-0.973c 1.606,0.113 2.452,1.649 2.452,1.649c 1.427,2.446 3.743,1.739 4.656,1.33c 0.143,-1.034 0.558,-1.74 1.016,-2.14c -3.554,-0.404 -7.29,-1.777 -7.29,-7.907c 0,-1.747 0.625,-3.174 1.649,-4.295c -0.166,-0.403 -0.714,-2.03 0.155,-4.234c 0,0 1.344,-0.43 4.401,1.64c 1.276,-0.355 2.645,-0.532 4.005,-0.539c 1.359,0.006 2.729,0.184 4.008,0.539c 3.054,-2.07 4.395,-1.64 4.395,-1.64c 0.871,2.204 0.323,3.831 0.157,4.234c 1.026,1.12 1.647,2.548 1.647,4.295c 0,6.145 -3.743,7.498 -7.306,7.895c 0.574,0.497 1.085,1.47 1.085,2.963c 0,2.141 -0.019,3.864 -0.019,4.391c 0,0.426 0.288,0.925 1.099,0.768c 6.354,-2.118 10.933,-8.113 10.933,-15.18c 0,-8.837 -7.164,-16 -16,-16Z"></path></svg>GitHub</a><a href="./" title="Introducing a&nbsp;library.">1. Introduction</a><a href="elements" title="Basic concepts of elements modifications and creations.">2. Elements</a><a href="events" title="Using not only events in UI declaratively." class="current">3. Events and Modifiers</a></nav><main><h2>Listenning to the native DOM events and other Modifiers</h2><p>We quickly introduce helper to listening to the native DOM events. And library syntax/pattern so-called <em>Modifier</em> to incorporate not only this in UI templates declaratively.</p><h3>Add events listeners</h3><p></p><div class="prevNext"><!--<dde:mark type="component" name="prevNext" host="parentElement" ssr/>--><a rel="prev" href="elements" title="Basic concepts of elements modifications and creations."><!--<dde:mark type="component" name="pageLink" host="parentElement" ssr/>-->Elements (previous)</a><!--<dde:mark type="component" name="pageLink" host="this" ssr/>--></div></main></body></html> <!DOCTYPE html><html><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1"><meta name="description" content="Using not only events in UI declaratively."><title>`deka-dom-el` — Events and Modifiers</title><!--<dde:mark type="component" name="metaAuthor" host="this" ssr/>--><meta name="author" content="Jan Andrle"><link type="text/plain" rel="author" href="https://jaandrle.github.io/humans.txt"><meta name="generator" content="deka-dom-el"><!--<dde:mark type="component" name="metaTwitter" host="this" ssr/>--><meta name="twitter:card" content="summary_large_image"><meta name="twitter:url" content="https://github.com/jaandrle/deka-dom-el"><meta name="twitter:title" content="deka-dom-el"><meta name="twitter:description" content="A low-code library that simplifies the creation of native DOM elements/components using small wrappers and tweaks."><meta name="twitter:creator" content="@jaandrle"><!--<dde:mark type="component" name="metaFacebook" host="this" ssr/>--><meta name="og:url" content="https://github.com/jaandrle/deka-dom-el"><meta name="og:title" content="deka-dom-el"><meta name="og:description" content="A low-code library that simplifies the creation of native DOM elements/components using small wrappers and tweaks."><meta name="og:creator" content="@jaandrle"><script src="https://flems.io/flems.html" type="text/javascript" charset="utf-8"></script><link rel="stylesheet" href="global.css"></head><body><!--<dde:mark type="component" name="page" host="this" ssr/>--><!--<dde:mark type="component" name="header" host="this" ssr/>--><header><h1>`deka-dom-el` — Events and Modifiers</h1><p>Using not only events in UI declaratively.</p></header><nav><a href="https://github.com/jaandrle/deka-dom-el"><svg class="icon" viewBox="0 0 32 32"><!--<dde:mark type="component" name="iconGitHub" host="parentElement" ssr/>--><path d="M 16,0.395c -8.836,0 -16,7.163 -16,16c 0,7.069 4.585,13.067 10.942,15.182c 0.8,0.148 1.094,-0.347 1.094,-0.77c 0,-0.381 -0.015,-1.642 -0.022,-2.979c -4.452,0.968 -5.391,-1.888 -5.391,-1.888c -0.728,-1.849 -1.776,-2.341 -1.776,-2.341c -1.452,-0.993 0.11,-0.973 0.11,-0.973c 1.606,0.113 2.452,1.649 2.452,1.649c 1.427,2.446 3.743,1.739 4.656,1.33c 0.143,-1.034 0.558,-1.74 1.016,-2.14c -3.554,-0.404 -7.29,-1.777 -7.29,-7.907c 0,-1.747 0.625,-3.174 1.649,-4.295c -0.166,-0.403 -0.714,-2.03 0.155,-4.234c 0,0 1.344,-0.43 4.401,1.64c 1.276,-0.355 2.645,-0.532 4.005,-0.539c 1.359,0.006 2.729,0.184 4.008,0.539c 3.054,-2.07 4.395,-1.64 4.395,-1.64c 0.871,2.204 0.323,3.831 0.157,4.234c 1.026,1.12 1.647,2.548 1.647,4.295c 0,6.145 -3.743,7.498 -7.306,7.895c 0.574,0.497 1.085,1.47 1.085,2.963c 0,2.141 -0.019,3.864 -0.019,4.391c 0,0.426 0.288,0.925 1.099,0.768c 6.354,-2.118 10.933,-8.113 10.933,-15.18c 0,-8.837 -7.164,-16 -16,-16Z"></path></svg>GitHub</a><a href="./" title="Introducing a&nbsp;library.">1. Introduction</a><a href="elements" title="Basic concepts of elements modifications and creations.">2. Elements</a><a href="events" title="Using not only events in UI declaratively." class="current">3. Events and Modifiers</a></nav><main><h2>Listenning to the native DOM events and other Modifiers</h2><p>We quickly introduce helper to listening to the native DOM events. And library syntax/pattern so-called <em>Modifier</em> to incorporate not only this in UI templates declaratively.</p><h3>Events and listenners</h3><p>In JavaScript you can listen to the native DOM events of the given element by using <a href="https://developer.mozilla.org/en-US/docs/Web/API/EventTarget/addEventListener" title="addEventListener on MDN"><code>element.addEventListener(type, listener, options)</code></a>. The library provides an alternative (<code>on</code>) accepting the differen order of the arguments:</p><!--<dde:mark type="component" name="example" host="this" ssr/>--><div id="code-2jdid" class="example"><!--<dde:mark type="component" name="code" host="parentElement" ssr/>--><code class="language-js">import { el, on } from "https://cdn.jsdelivr.net/gh/jaandrle/deka-dom-el/dist/esm-with-signals.js";
const log= mark=&gt; console.log.bind(console, mark);
const button= el("button", "Test click");
button.addEventListener("click", log("`addEventListener`"), { once: true });
on("click", log("`on`"), { once: true })(button);
document.body.append(
button
);
</code></div><script>Flems(document.getElementById("code-2jdid"), JSON.parse("{\"files\":[{\"name\":\".js\",\"content\":\"import { el, on } from \\\"https://cdn.jsdelivr.net/gh/jaandrle/deka-dom-el/dist/esm-with-signals.js\\\";\\nconst log= mark=> console.log.bind(console, mark);\\n\\nconst button= el(\\\"button\\\", \\\"Test click\\\");\\nbutton.addEventListener(\\\"click\\\", log(\\\"`addEventListener`\\\"), { once: true });\\non(\\\"click\\\", log(\\\"`on`\\\"), { once: true })(button);\\n\\ndocument.body.append(\\n\\tbutton\\n);\\n\"}],\"toolbar\":false}"));</script><p>…this is actually one of the two differences. The another one is that<code>on</code> accepts only object as the <code>options</code> (but it is still optional).</p><p>The other difference is that there is <strong>no</strong> <code>off</code> function. You can remove listener declaratively using <a href="https://developer.mozilla.org/en-US/docs/Web/API/EventTarget/addEventListener#signal" title="part of addEventListener on MDN">AbortSignal</a>:</p><!--<dde:mark type="component" name="example" host="this" ssr/>--><div id="code-wf4jr" class="example"><!--<dde:mark type="component" name="code" host="parentElement" ssr/>--><code class="language-js">import { el, on } from "https://cdn.jsdelivr.net/gh/jaandrle/deka-dom-el/dist/esm-with-signals.js";
const log= mark=&gt; console.log.bind(console, mark);
const abort_controller= new AbortController();
const { signal }= abort_controller;
const button= el("button", "Test click");
button.addEventListener("click", log("`addEventListener`"), { signal });
on("click", log("`on`"), { signal })(button);
document.body.append(
button, " ", el("button", { textContent: "Off", onclick: ()=&gt; abort_controller.abort() })
);
</code></div><script>Flems(document.getElementById("code-wf4jr"), JSON.parse("{\"files\":[{\"name\":\".js\",\"content\":\"import { el, on } from \\\"https://cdn.jsdelivr.net/gh/jaandrle/deka-dom-el/dist/esm-with-signals.js\\\";\\nconst log= mark=> console.log.bind(console, mark);\\n\\nconst abort_controller= new AbortController();\\nconst { signal }= abort_controller;\\n\\nconst button= el(\\\"button\\\", \\\"Test click\\\");\\nbutton.addEventListener(\\\"click\\\", log(\\\"`addEventListener`\\\"), { signal });\\non(\\\"click\\\", log(\\\"`on`\\\"), { signal })(button);\\n\\ndocument.body.append(\\n\\tbutton, \\\" \\\", el(\\\"button\\\", { textContent: \\\"Off\\\", onclick: ()=> abort_controller.abort() })\\n);\\n\"}],\"toolbar\":false}"));</script><h3>Modifiers</h3><p>From practical point of view, <em>Modifiers</em> are just functions that accept any html element as their first parameter. You can see that the <code>on(…)</code> fullfills this requirement.</p><p>You can use Modifiers as ≥3rd argument of <code>el</code> function. This way is possible to extends you templates by additional (3rd party) functionalities. But for now mainly, you can add events listeners:</p><!--<dde:mark type="component" name="example" host="this" ssr/>--><div id="code-080l3" class="example"><!--<dde:mark type="component" name="code" host="parentElement" ssr/>--><code class="language-js">import { el, on } from "https://cdn.jsdelivr.net/gh/jaandrle/deka-dom-el/dist/esm-with-signals.js";
const abort_controller= new AbortController();
const { signal }= abort_controller;
/** @type {ddeElementModifier&lt;HTMLButtonElement&gt;} */
const onclickOff= on("click", ()=&gt; abort_controller.abort(), { signal });
/** @type {(ref?: HTMLOutputElement)=&gt; HTMLOutputElement | null} */
const ref= (store=&gt; ref=&gt; ref ? (store= ref) : store)(null);
document.body.append(
el("button", "Test `on`",
on("click", console.log, { signal }),
on("click", update, { signal }),
on("mouseup", update, { signal })),
" ",
el("button", "Off", onclickOff),
el("output", { style: { display: "block", whiteSpace: "pre" } }, ref)
);
/** @param {MouseEvent} event @this {HTMLButtonElement} */
function update(event){
ref().append(
event.type,
"\n"
);
}
</code></div><script>Flems(document.getElementById("code-080l3"), JSON.parse("{\"files\":[{\"name\":\".js\",\"content\":\"import { el, on } from \\\"https://cdn.jsdelivr.net/gh/jaandrle/deka-dom-el/dist/esm-with-signals.js\\\";\\nconst abort_controller= new AbortController();\\nconst { signal }= abort_controller;\\n/** @type {ddeElementModifier<HTMLButtonElement>} */\\nconst onclickOff= on(\\\"click\\\", ()=> abort_controller.abort(), { signal });\\n/** @type {(ref?: HTMLOutputElement)=> HTMLOutputElement | null} */\\nconst ref= (store=> ref=> ref ? (store= ref) : store)(null);\\n\\ndocument.body.append(\\n\\tel(\\\"button\\\", \\\"Test `on`\\\",\\n\\t\\ton(\\\"click\\\", console.log, { signal }),\\n\\t\\ton(\\\"click\\\", update, { signal }),\\n\\t\\ton(\\\"mouseup\\\", update, { signal })),\\n\\t\\\" \\\",\\n\\tel(\\\"button\\\", \\\"Off\\\", onclickOff),\\n\\tel(\\\"output\\\", { style: { display: \\\"block\\\", whiteSpace: \\\"pre\\\" } }, ref)\\n);\\n/** @param {MouseEvent} event @this {HTMLButtonElement} */\\nfunction update(event){\\n\\tref().append(\\n\\t\\tevent.type,\\n\\t\\t\\\"\\\\n\\\"\\n\\t);\\n}\\n\"}],\"toolbar\":false}"));</script><p>As the example shows, you can also provide types in JSDoc+TypeScript by using global type <code>ddeElementModifier</code>. Also notice, you can use Modifiers to get element reference.</p><h3>Life cycle events</h3><p>Modifiers are called immediately when the element is created, event it is not connected to live DOM yet.</p><div class="prevNext"><!--<dde:mark type="component" name="prevNext" host="parentElement" ssr/>--><a rel="prev" href="elements" title="Basic concepts of elements modifications and creations."><!--<dde:mark type="component" name="pageLink" host="parentElement" ssr/>-->Elements (previous)</a><!--<dde:mark type="component" name="pageLink" host="this" ssr/>--></div></main></body></html>

5
docs/index.html
View File

@ -1,4 +1,5 @@
<!DOCTYPE html><html><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1"><meta name="description" content="Introducing a&nbsp;library."><title>`deka-dom-el` — Introduction</title><!--<dde:mark type="component" name="metaAuthor" host="this" ssr/>--><meta name="author" content="Jan Andrle"><link type="text/plain" rel="author" href="https://jaandrle.github.io/humans.txt"><meta name="generator" content="deka-dom-el"><!--<dde:mark type="component" name="metaTwitter" host="this" ssr/>--><meta name="twitter:card" content="summary_large_image"><meta name="twitter:url" content="https://github.com/jaandrle/deka-dom-el"><meta name="twitter:title" content="deka-dom-el"><meta name="twitter:description" content="A low-code library that simplifies the creation of native DOM elements/components using small wrappers and tweaks."><meta name="twitter:creator" content="@jaandrle"><!--<dde:mark type="component" name="metaFacebook" host="this" ssr/>--><meta name="og:url" content="https://github.com/jaandrle/deka-dom-el"><meta name="og:title" content="deka-dom-el"><meta name="og:description" content="A low-code library that simplifies the creation of native DOM elements/components using small wrappers and tweaks."><meta name="og:creator" content="@jaandrle"><script src="https://flems.io/flems.html" type="text/javascript" charset="utf-8"></script><link rel="stylesheet" href="global.css"></head><body><!--<dde:mark type="component" name="page" host="this" ssr/>--><!--<dde:mark type="component" name="header" host="this" ssr/>--><header><h1>`deka-dom-el` — Introduction</h1><p>Introducing a&nbsp;library.</p></header><nav><a href="https://github.com/jaandrle/deka-dom-el"><svg class="icon" viewBox="0 0 32 32"><!--<dde:mark type="component" name="iconGitHub" host="parentElement" ssr/>--><path d="M 16,0.395c -8.836,0 -16,7.163 -16,16c 0,7.069 4.585,13.067 10.942,15.182c 0.8,0.148 1.094,-0.347 1.094,-0.77c 0,-0.381 -0.015,-1.642 -0.022,-2.979c -4.452,0.968 -5.391,-1.888 -5.391,-1.888c -0.728,-1.849 -1.776,-2.341 -1.776,-2.341c -1.452,-0.993 0.11,-0.973 0.11,-0.973c 1.606,0.113 2.452,1.649 2.452,1.649c 1.427,2.446 3.743,1.739 4.656,1.33c 0.143,-1.034 0.558,-1.74 1.016,-2.14c -3.554,-0.404 -7.29,-1.777 -7.29,-7.907c 0,-1.747 0.625,-3.174 1.649,-4.295c -0.166,-0.403 -0.714,-2.03 0.155,-4.234c 0,0 1.344,-0.43 4.401,1.64c 1.276,-0.355 2.645,-0.532 4.005,-0.539c 1.359,0.006 2.729,0.184 4.008,0.539c 3.054,-2.07 4.395,-1.64 4.395,-1.64c 0.871,2.204 0.323,3.831 0.157,4.234c 1.026,1.12 1.647,2.548 1.647,4.295c 0,6.145 -3.743,7.498 -7.306,7.895c 0.574,0.497 1.085,1.47 1.085,2.963c 0,2.141 -0.019,3.864 -0.019,4.391c 0,0.426 0.288,0.925 1.099,0.768c 6.354,-2.118 10.933,-8.113 10.933,-15.18c 0,-8.837 -7.164,-16 -16,-16Z"></path></svg>GitHub</a><a href="./" title="Introducing a&nbsp;library." class="current">1. Introduction</a><a href="elements" title="Basic concepts of elements modifications and creations.">2. Elements</a><a href="events" title="Using not only events in UI declaratively.">3. Events and Modifiers</a></nav><main><p>The library tries to provide pure JavaScript tool(s) to create reactive interfaces.</p><p>We start with creating and modifying a&nbsp;static elemnets and end up with UI templates. <i>From <code>document.createElement</code> to <code>el</code>.</i> Then we go through the native events system and the way to include it declaratively in UI templates. <i>From <code>element.addEventListener</code> to <code>on</code>.</i></p><p>Next step is providing interactivity not only for our UI templates. We introduce signals (<code>S</code>) and how them incorporate to UI templates.</p><p>Now we will clarify how the signals are incorporated into our templates with regard to application performance. This is not the only reason the library uses <code>scope</code>s. We will look at how they work in components represented in JavaScript by functions.</p><!--<dde:mark type="component" name="example" host="this" ssr/>--><div id="code-l2c7o" class="example"><!--<dde:mark type="component" name="code" host="parentElement" ssr/>--><code class="language-js">import { el, S } from "https://cdn.jsdelivr.net/gh/jaandrle/deka-dom-el/dist/esm-with-signals.js"; <!DOCTYPE html><html><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1"><meta name="description" content="Introducing a&nbsp;library."><title>`deka-dom-el` — Introduction</title><!--<dde:mark type="component" name="metaAuthor" host="this" ssr/>--><meta name="author" content="Jan Andrle"><link type="text/plain" rel="author" href="https://jaandrle.github.io/humans.txt"><meta name="generator" content="deka-dom-el"><!--<dde:mark type="component" name="metaTwitter" host="this" ssr/>--><meta name="twitter:card" content="summary_large_image"><meta name="twitter:url" content="https://github.com/jaandrle/deka-dom-el"><meta name="twitter:title" content="deka-dom-el"><meta name="twitter:description" content="A low-code library that simplifies the creation of native DOM elements/components using small wrappers and tweaks."><meta name="twitter:creator" content="@jaandrle"><!--<dde:mark type="component" name="metaFacebook" host="this" ssr/>--><meta name="og:url" content="https://github.com/jaandrle/deka-dom-el"><meta name="og:title" content="deka-dom-el"><meta name="og:description" content="A low-code library that simplifies the creation of native DOM elements/components using small wrappers and tweaks."><meta name="og:creator" content="@jaandrle"><script src="https://flems.io/flems.html" type="text/javascript" charset="utf-8"></script><link rel="stylesheet" href="global.css"></head><body><!--<dde:mark type="component" name="page" host="this" ssr/>--><!--<dde:mark type="component" name="header" host="this" ssr/>--><header><h1>`deka-dom-el` — Introduction</h1><p>Introducing a&nbsp;library.</p></header><nav><a href="https://github.com/jaandrle/deka-dom-el"><svg class="icon" viewBox="0 0 32 32"><!--<dde:mark type="component" name="iconGitHub" host="parentElement" ssr/>--><path d="M 16,0.395c -8.836,0 -16,7.163 -16,16c 0,7.069 4.585,13.067 10.942,15.182c 0.8,0.148 1.094,-0.347 1.094,-0.77c 0,-0.381 -0.015,-1.642 -0.022,-2.979c -4.452,0.968 -5.391,-1.888 -5.391,-1.888c -0.728,-1.849 -1.776,-2.341 -1.776,-2.341c -1.452,-0.993 0.11,-0.973 0.11,-0.973c 1.606,0.113 2.452,1.649 2.452,1.649c 1.427,2.446 3.743,1.739 4.656,1.33c 0.143,-1.034 0.558,-1.74 1.016,-2.14c -3.554,-0.404 -7.29,-1.777 -7.29,-7.907c 0,-1.747 0.625,-3.174 1.649,-4.295c -0.166,-0.403 -0.714,-2.03 0.155,-4.234c 0,0 1.344,-0.43 4.401,1.64c 1.276,-0.355 2.645,-0.532 4.005,-0.539c 1.359,0.006 2.729,0.184 4.008,0.539c 3.054,-2.07 4.395,-1.64 4.395,-1.64c 0.871,2.204 0.323,3.831 0.157,4.234c 1.026,1.12 1.647,2.548 1.647,4.295c 0,6.145 -3.743,7.498 -7.306,7.895c 0.574,0.497 1.085,1.47 1.085,2.963c 0,2.141 -0.019,3.864 -0.019,4.391c 0,0.426 0.288,0.925 1.099,0.768c 6.354,-2.118 10.933,-8.113 10.933,-15.18c 0,-8.837 -7.164,-16 -16,-16Z"></path></svg>GitHub</a><a href="./" title="Introducing a&nbsp;library." class="current">1. Introduction</a><a href="elements" title="Basic concepts of elements modifications and creations.">2. Elements</a><a href="events" title="Using not only events in UI declaratively.">3. Events and Modifiers</a></nav><main><p>The library tries to provide pure JavaScript tool(s) to create reactive interfaces.</p><p>We start with creating and modifying a&nbsp;static elements and end up with UI templates. <i>From <code>document.createElement</code> to <code>el</code>.</i> Then we go through the native events system and the way to include it declaratively in UI templates. <i>From <code>element.addEventListener</code> to <code>on</code>.</i></p><p>Next step is providing interactivity not only for our UI templates. We introduce signals (<code>S</code>) and how them incorporate to UI templates.</p><p>Now we will clarify how the signals are incorporated into our templates with regard to application performance. This is not the only reason the library uses <code>scope</code>s. We will look at how they work in components represented in JavaScript by functions.</p><!--<dde:mark type="component" name="example" host="this" ssr/>--><div id="code-caq4e" class="example"><!--<dde:mark type="component" name="code" host="parentElement" ssr/>--><code class="language-js">import { el } from "https://cdn.jsdelivr.net/gh/jaandrle/deka-dom-el/dist/esm-with-signals.js";
import { S } from "https://cdn.jsdelivr.net/gh/jaandrle/deka-dom-el/dist/esm-with-signals.js";
const clicks= S(0); const clicks= S(0);
document.body.append( document.body.append(
el().append( el().append(
@ -12,4 +13,4 @@ document.body.append(
}) })
) )
); );
</code></div><script>Flems(document.getElementById("code-l2c7o"), JSON.parse("{\"files\":[{\"name\":\".js\",\"content\":\"import { el, S } from \\\"https://cdn.jsdelivr.net/gh/jaandrle/deka-dom-el/dist/esm-with-signals.js\\\";\\nconst clicks= S(0);\\ndocument.body.append(\\n\\tel().append(\\n\\t\\tel(\\\"p\\\", S(()=>\\n\\t\\t\\t\\\"Hello World \\\"+\\\"🎉\\\".repeat(clicks())\\n\\t\\t)),\\n\\t\\tel(\\\"button\\\", {\\n\\t\\t\\ttype: \\\"button\\\",\\n\\t\\t\\tonclick: ()=> clicks(clicks()+1),\\n\\t\\t\\ttextContent: \\\"Fire\\\"\\n\\t\\t})\\n\\t)\\n);\\n\"}],\"toolbar\":false}"));</script><div class="prevNext"><!--<dde:mark type="component" name="prevNext" host="parentElement" ssr/>--><!--<dde:mark type="component" name="pageLink" host="this" ssr/>--><a rel="next" href="elements" title="Basic concepts of elements modifications and creations."><!--<dde:mark type="component" name="pageLink" host="parentElement" ssr/>-->(next) Elements</a></div></main></body></html> </code></div><script>Flems(document.getElementById("code-caq4e"), JSON.parse("{\"files\":[{\"name\":\".js\",\"content\":\"import { el } from \\\"https://cdn.jsdelivr.net/gh/jaandrle/deka-dom-el/dist/esm-with-signals.js\\\";\\nimport { S } from \\\"https://cdn.jsdelivr.net/gh/jaandrle/deka-dom-el/dist/esm-with-signals.js\\\";\\nconst clicks= S(0);\\ndocument.body.append(\\n\\tel().append(\\n\\t\\tel(\\\"p\\\", S(()=>\\n\\t\\t\\t\\\"Hello World \\\"+\\\"🎉\\\".repeat(clicks())\\n\\t\\t)),\\n\\t\\tel(\\\"button\\\", {\\n\\t\\t\\ttype: \\\"button\\\",\\n\\t\\t\\tonclick: ()=> clicks(clicks()+1),\\n\\t\\t\\ttextContent: \\\"Fire\\\"\\n\\t\\t})\\n\\t)\\n);\\n\"}],\"toolbar\":false}"));</script><div class="prevNext"><!--<dde:mark type="component" name="prevNext" host="parentElement" ssr/>--><!--<dde:mark type="component" name="pageLink" host="this" ssr/>--><a rel="next" href="elements" title="Basic concepts of elements modifications and creations."><!--<dde:mark type="component" name="pageLink" host="parentElement" ssr/>-->(next) Elements</a></div></main></body></html>

2
docs_src/components/example.html.js
View File

@ -24,7 +24,7 @@ import { code } from "./code.html.js";
export function example({ src, language= "js", page_id }){ export function example({ src, language= "js", page_id }){
registerClientPart(page_id); registerClientPart(page_id);
const content= s.cat(src).toString() const content= s.cat(src).toString()
.replaceAll(' from "../../../index-with-signals.js";', ' from "https://cdn.jsdelivr.net/gh/jaandrle/deka-dom-el/dist/esm-with-signals.js";'); .replaceAll(/ from "deka-dom-el(\/signals)?";/g, ' from "https://cdn.jsdelivr.net/gh/jaandrle/deka-dom-el/dist/esm-with-signals.js";');
const id= "code-"+Math.random().toString(36).slice(2, 7); const id= "code-"+Math.random().toString(36).slice(2, 7);
return el().append( return el().append(
el(code, { id, content, language, className: example.name }), el(code, { id, content, language, className: example.name }),

2
docs_src/components/examples/dekaAppend.js → docs_src/components/examples/elements/dekaAppend.js
View File

@ -1,4 +1,4 @@
import { el } from "../../../index-with-signals.js"; import { el } from "deka-dom-el";
document.head.append( document.head.append(
el("style").append( el("style").append(
"tr, td{ border: 1px solid red; padding: 1em; }", "tr, td{ border: 1px solid red; padding: 1em; }",

2
docs_src/components/examples/dekaAssign.js → docs_src/components/examples/elements/dekaAssign.js
View File

@ -1,4 +1,4 @@
import { assignAttribute, classListDeclarative } from "../../../index-with-signals.js"; import { assignAttribute, classListDeclarative } from "deka-dom-el";
const paragraph= document.createElement("p"); const paragraph= document.createElement("p");
assignAttribute(paragraph, "textContent", "Hello, world!"); assignAttribute(paragraph, "textContent", "Hello, world!");

2
docs_src/components/examples/dekaBasicComponent.js → docs_src/components/examples/elements/dekaBasicComponent.js
View File

@ -1,4 +1,4 @@
import { el } from "../../../index-with-signals.js"; import { el } from "deka-dom-el";
document.head.append( document.head.append(
el("style").append( el("style").append(
".class1{ font-weight: bold; }", ".class1{ font-weight: bold; }",

2
docs_src/components/examples/dekaCreateElement.js → docs_src/components/examples/elements/dekaCreateElement.js
View File

@ -1,4 +1,4 @@
import { el, assign } from "../../../index-with-signals.js"; import { el, assign } from "deka-dom-el";
const color= "lightcoral"; const color= "lightcoral";
document.body.append( document.body.append(
el("p", { textContent: "Hello (first time)", style: { color } }) el("p", { textContent: "Hello (first time)", style: { color } })

2
docs_src/components/examples/dekaElNS.js → docs_src/components/examples/elements/dekaElNS.js
View File

@ -1,4 +1,4 @@
import { elNS, assign } from "../../../index-with-signals.js"; import { elNS, assign } from "deka-dom-el";
const elSVG= elNS("http://www.w3.org/2000/svg"); const elSVG= elNS("http://www.w3.org/2000/svg");
const elMath= elNS("http://www.w3.org/1998/Math/MathML"); const elMath= elNS("http://www.w3.org/1998/Math/MathML");
document.body.append( document.body.append(

0
docs_src/components/examples/nativeAppend.js → docs_src/components/examples/elements/nativeAppend.js
View File

0
docs_src/components/examples/nativeCreateElement.js → docs_src/components/examples/elements/nativeCreateElement.js
View File

13
docs_src/components/examples/events/abortSignal.js Normal file
View File

@ -0,0 +1,13 @@
import { el, on } from "deka-dom-el";
const log= mark=> console.log.bind(console, mark);
const abort_controller= new AbortController();
const { signal }= abort_controller;
const button= el("button", "Test click");
button.addEventListener("click", log("`addEventListener`"), { signal });
on("click", log("`on`"), { signal })(button);
document.body.append(
button, " ", el("button", { textContent: "Off", onclick: ()=> abort_controller.abort() })
);

10
docs_src/components/examples/events/compare.js Normal file
View File

@ -0,0 +1,10 @@
import { el, on } from "deka-dom-el";
const log= mark=> console.log.bind(console, mark);
const button= el("button", "Test click");
button.addEventListener("click", log("`addEventListener`"), { once: true });
on("click", log("`on`"), { once: true })(button);
document.body.append(
button
);

24
docs_src/components/examples/events/templateWithListeners.js Normal file
View File

@ -0,0 +1,24 @@
import { el, on } from "deka-dom-el";
const abort_controller= new AbortController();
const { signal }= abort_controller;
/** @type {ddeElementModifier<HTMLButtonElement>} */
const onclickOff= on("click", ()=> abort_controller.abort(), { signal });
/** @type {(ref?: HTMLOutputElement)=> HTMLOutputElement | null} */
const ref= (store=> ref=> ref ? (store= ref) : store)(null);
document.body.append(
el("button", "Test `on`",
on("click", console.log, { signal }),
on("click", update, { signal }),
on("mouseup", update, { signal })),
" ",
el("button", "Off", onclickOff),
el("output", { style: { display: "block", whiteSpace: "pre" } }, ref)
);
/** @param {MouseEvent} event @this {HTMLButtonElement} */
function update(event){
ref().append(
event.type,
"\n"
);
}

3
docs_src/components/examples/helloWorld.js
View File

@ -1,4 +1,5 @@
import { el, S } from "../../../index-with-signals.js"; import { el } from "deka-dom-el";
import { S } from "deka-dom-el/signals";
const clicks= S(0); const clicks= S(0);
document.body.append( document.body.append(
el().append( el().append(

14
docs_src/elements.html.js
View File

@ -30,12 +30,12 @@ export function page({ pkg, info }){
el("abbr", { textContent: "IDL", title: "Interface Description Language" }) el("abbr", { textContent: "IDL", title: "Interface Description Language" })
), " also known as a JavaScript property." ), " also known as a JavaScript property."
), ),
el(example, { src: fileURL("./components/examples/nativeCreateElement.js"), page_id }), el(example, { src: fileURL("./components/examples/elements/nativeCreateElement.js"), page_id }),
el("p").append( el("p").append(
"To make this easier, you can use the ", el("code", "el"), " function. ", "To make this easier, you can use the ", el("code", "el"), " function. ",
"Internally in basic examples, it is wrapper around ", el("code", "assign(document.createElement(…), { … })"), "." "Internally in basic examples, it is wrapper around ", el("code", "assign(document.createElement(…), { … })"), "."
), ),
el(example, { src: fileURL("./components/examples/dekaCreateElement.js"), page_id }), el(example, { src: fileURL("./components/examples/elements/dekaCreateElement.js"), page_id }),
el("p").append( el("p").append(
"The ", el("code", "assign"), " function provides improved behaviour of ", el("code", "Object.assign()"), ". ", "The ", el("code", "assign"), " function provides improved behaviour of ", el("code", "Object.assign()"), ". ",
"You can declaratively sets any IDL and attribute of the given element. ", "You can declaratively sets any IDL and attribute of the given element. ",
@ -76,15 +76,15 @@ export function page({ pkg, info }){
el("p").append( el("p").append(
"For processing, the ", el("code", "assign"), " internally uses ", el("code", "assignAttribute"), " and ", el("code", "classListDeclarative"), "." "For processing, the ", el("code", "assign"), " internally uses ", el("code", "assignAttribute"), " and ", el("code", "classListDeclarative"), "."
), ),
el(example, { src: fileURL("./components/examples/dekaAssign.js"), page_id }), el(example, { src: fileURL("./components/examples/elements/dekaAssign.js"), page_id }),
el("h3", "Native JavaScript templating"), el("h3", "Native JavaScript templating"),
el("p", "By default, the native JS has no good way to define HTML template using DOM API:"), el("p", "By default, the native JS has no good way to define HTML template using DOM API:"),
el(example, { src: fileURL("./components/examples/nativeAppend.js"), page_id }), el(example, { src: fileURL("./components/examples/elements/nativeAppend.js"), page_id }),
el("p").append( el("p").append(
"This library therefore overwrites the ", el("code", "append"), " method of created elements to always return parent element." "This library therefore overwrites the ", el("code", "append"), " method of created elements to always return parent element."
), ),
el(example, { src: fileURL("./components/examples/dekaAppend.js"), page_id }), el(example, { src: fileURL("./components/examples/elements/dekaAppend.js"), page_id }),
el("h3", "Basic (state-less) components"), el("h3", "Basic (state-less) components"),
@ -93,7 +93,7 @@ export function page({ pkg, info }){
"The ", el("code", "el"), " accepts function as first argument. ", "The ", el("code", "el"), " accepts function as first argument. ",
"In that case, the function should return dom elements and the second argument for ", el("code", "el"), " is argument for given element." "In that case, the function should return dom elements and the second argument for ", el("code", "el"), " is argument for given element."
), ),
el(example, { src: fileURL("./components/examples/dekaBasicComponent.js"), page_id }), el(example, { src: fileURL("./components/examples/elements/dekaBasicComponent.js"), page_id }),
el("p").append( el("p").append(
"As you can see, in case of state-less/basic components there is no difference", "As you can see, in case of state-less/basic components there is no difference",
" between calling component function directly or using ", el("code", "el"), " function.", " between calling component function directly or using ", el("code", "el"), " function.",
@ -110,7 +110,7 @@ export function page({ pkg, info }){
" we need to tell JavaScript which kind of the element to create.", " we need to tell JavaScript which kind of the element to create.",
" We can use the ", el("code", "elNS"), " function:" " We can use the ", el("code", "elNS"), " function:"
), ),
el(example, { src: fileURL("./components/examples/dekaElNS.js"), page_id }), el(example, { src: fileURL("./components/examples/elements/dekaElNS.js"), page_id }),
el(prevNext, info) el(prevNext, info)
) )

42
docs_src/events.html.js
View File

@ -20,9 +20,49 @@ export function page({ pkg, info }){
" incorporate not only this in UI templates declaratively." " incorporate not only this in UI templates declaratively."
), ),
el("h3", "Add events listeners"), el("h3", "Events and listenners"),
el("p").append( el("p").append(
"In JavaScript you can listen to the native DOM events of the given element by using ",
el("a", { href: "https://developer.mozilla.org/en-US/docs/Web/API/EventTarget/addEventListener", title: "addEventListener on MDN" }).append(
el("code", "element.addEventListener(type, listener, options)")
), ".",
" ",
"The library provides an alternative (", el("code", "on"), ") accepting the differen order",
" of the arguments:"
), ),
el(example, { src: fileURL("./components/examples/events/compare.js"), page_id }),
el("p").append(
"…this is actually one of the two differences. The another one is that", el("code", "on"),
" accepts only object as the ", el("code", "options"), " (but it is still optional)."
),
el("p").append(
"The other difference is that there is ", el("strong", "no"), " ", el("code", "off"), " function.",
" ",
"You can remove listener declaratively using ", el("a", { textContent: "AbortSignal", href: "https://developer.mozilla.org/en-US/docs/Web/API/EventTarget/addEventListener#signal", title: "part of addEventListener on MDN" }),
":"
),
el(example, { src: fileURL("./components/examples/events/abortSignal.js"), page_id }),
el("h3", "Modifiers"),
el("p").append(
"From practical point of view, ", el("em", "Modifiers"), " are just functions that accept any html element",
" as their first parameter. You can see that the ", el("code", "on(…)"), " fullfills this requirement."
),
el("p").append(
"You can use Modifiers as ≥3rd argument of ", el("code", "el"), " function. This way is possible to extends",
" you templates by additional (3rd party) functionalities. But for now mainly, you can add events listeners:"
),
el(example, { src: fileURL("./components/examples/events/templateWithListeners.js"), page_id }),
el("p").append(
"As the example shows, you can also provide types in JSDoc+TypeScript by using global type ", el("code", "ddeElementModifier"), ".",
" ",
"Also notice, you can use Modifiers to get element reference.",
),
el("h3", "Life cycle events"),
el("p", "Modifiers are called immediately when the element is created, event it is not connected to live DOM yet."),
// todo
// dispatchEvent
el(prevNext, info) el(prevNext, info)
) )

2
docs_src/index.html.js
View File

@ -12,7 +12,7 @@ export function page({ pkg, info }){
el("main").append( el("main").append(
el("p", "The library tries to provide pure JavaScript tool(s) to create reactive interfaces."), el("p", "The library tries to provide pure JavaScript tool(s) to create reactive interfaces."),
el("p").append( el("p").append(
"We start with creating and modifying a static elemnets and end up with UI templates.", "We start with creating and modifying a static elements and end up with UI templates.",
" ", " ",
el("i").append( el("i").append(
"From ", el("code", "document.createElement"), " to ", el("code", "el"), "." "From ", el("code", "document.createElement"), " to ", el("code", "el"), "."