jaandrle/deka-dom-el
1
0
Fork 0
mirror of https://github.com/jaandrle/deka-dom-el synced 2024-11-21 23:39:37 +01:00
Code Packages Releases Activity

docs

Browse Source
This commit is contained in:
Jan Andrle 2023-11-06 13:45:43 +01:00
parent 64a03c8ba5
commit 324727cc0a
Signed by: jaandrle
GPG Key ID: B3A25AED155AFFAB
9 changed files with 301 additions and 13 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

106
docs/index.html
View File

@ -1,4 +1,4 @@
<!DOCTYPE html><html><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1"><link rel="stylesheet" href="index.css"><meta name="description" content="Introducing basic concepts."><!--<dde:mark type="component" name="metaTwitter"/>--><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"/>--><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"><title>`deka-dom-el` — Introduction/Guide</title><script src="https://flems.io/flems.html" type="text/javascript" charset="utf-8"></script></head><body><!--<dde:mark type="component" name="body"/>--><h1>`deka-dom-el` — Introduction/Guide</h1><p>The library tries to provide pure JavaScript tool(s) to create reactive interfaces.The main goals are:</p><ul><li>provide a&nbsp;small wrapper around the native JavaScript DOM</li><li>keep library size under 10kB</li><li>zero dependencies (if possible)</li><li>prefer a&nbsp;declarative/functional approach</li><li>unopinionated (allow alternative methods)</li></ul><p class="note">It is, in fact, an reimplementation of <a href="https://github.com/jaandrle/dollar_dom_component" title="GitHub repository of library. Motto: Functional DOM components without JSX and virtual DOM.">jaandrle/dollar_dom_component</a>.</p><!--<dde:mark type="component" name="example"/>--><div id="code-vup3z" class="example"><pre><code class="language-javascript">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"><link rel="stylesheet" href="index.css"><meta name="description" content="Introducing basic concepts."><!--<dde:mark type="component" name="metaTwitter"/>--><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"/>--><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"><title>`deka-dom-el` — Introduction/Guide</title><script src="https://flems.io/flems.html" type="text/javascript" charset="utf-8"></script></head><body><!--<dde:mark type="component" name="body"/>--><h1>`deka-dom-el` — Introduction/Guide</h1><p>The library tries to provide pure JavaScript tool(s) to create reactive interfaces. The main goals are:</p><ul><li>provide a&nbsp;small wrappers/utilities around the native JavaScript DOM</li><li>keep library size around 10kB at maximum (if possible)</li><li>zero dependencies (if possible)</li><li>prefer a&nbsp;declarative/functional approach</li><li>unopinionated (allow alternative methods)</li></ul><p class="note">It is, in fact, an reimplementation of <a href="https://github.com/jaandrle/dollar_dom_component" title="GitHub repository of library. Motto: Functional DOM components without JSX and virtual DOM.">jaandrle/dollar_dom_component</a>.</p><!--<dde:mark type="component" name="example"/>--><div id="code-uoifx" class="example"><pre><code class="language-javascript">import { el, S } from "https://cdn.jsdelivr.net/gh/jaandrle/deka-dom-el/dist/esm-with-signals.js";
const clicks= S(0);
document.body.append(
el("&lt;&gt;").append(
@ -12,4 +12,106 @@ document.body.append(
})
)
);
</code></pre></div><script>Flems(document.getElementById("code-vup3z"), 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><script src="https://cdn.jsdelivr.net/npm/shiki"></script><script src="index.js" type="module"></script></body></html>
</code></pre></div><script>Flems(document.getElementById("code-uoifx"), 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><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>.</p><!--<dde:mark type="component" name="example"/>--><div id="code-unfu2" class="example"><pre><code class="language-javascript">document.body.append(
document.createElement("div")
);
console.log(
"Emty div is generated inside &lt;body&gt;:",
document.body.innerHTML.includes("&lt;div&gt;&lt;/div&gt;")
);
document.body.append(
Object.assign(
document.createElement("p"),
{ textContent: "Element’s text content.", style: "color: coral;" }
)
);
</code></pre></div><script>Flems(document.getElementById("code-unfu2"), 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"/>--><div id="code-5zakj" class="example"><pre><code class="language-javascript">import { el, assign } from "https://cdn.jsdelivr.net/gh/jaandrle/deka-dom-el/dist/esm-with-signals.js";
const color= "lightcoral";
document.body.append(
el("p", { textContent: "Hello (first time)", style: { color } })
);
document.body.append(
assign(
document.createElement("p"),
{ textContent: "Hello (second time)", style: { color } }
)
);
</code></pre></div><script>Flems(document.getElementById("code-5zakj"), 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"/>--><div id="code-y8a12" class="example"><pre><code class="language-javascript">import { assignAttribute, classListDeclarative } from "https://cdn.jsdelivr.net/gh/jaandrle/deka-dom-el/dist/esm-with-signals.js";
const paragraph= document.createElement("p");
assignAttribute(paragraph, "textContent", "Hello, world!");
assignAttribute(paragraph, "style", { color: "navy" });
assignAttribute(paragraph, "dataTest1", "v1");
assignAttribute(paragraph, "dataset", { test2: "v2" });
assignAttribute(paragraph, "ariaLabel", "v1");
assignAttribute(paragraph, "ariaset", { role: "none" });
classListDeclarative(paragraph, {
classAdd: true,
classRemove: false,
classAdd1: 1,
classRemove1: 0,
classToggle: -1
});
console.log(paragraph.outerHTML);
document.body.append(
paragraph
);
</code></pre></div><script>Flems(document.getElementById("code-y8a12"), 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"/>--><div id="code-bfbe5" class="example"><pre><code class="language-javascript">document.body.append(
document.createElement("div"),
document.createElement("span"),
document.createElement("main")
);
console.log(document.body.innerHTML.includes("&lt;div&gt;&lt;/div&gt;&lt;span&gt;&lt;/span&gt;&lt;main&gt;&lt;/main&gt;"));
const template= document.createElement("main").append(
document.createElement("div"),
document.createElement("span"),
);
console.log(typeof template==="undefined");
</code></pre></div><script>Flems(document.getElementById("code-bfbe5"), 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 ooverwrites the <code>append</code> method to always return parent element.</p><!--<dde:mark type="component" name="example"/>--><div id="code-frx3p" class="example"><pre><code class="language-javascript">import { el } from "https://cdn.jsdelivr.net/gh/jaandrle/deka-dom-el/dist/esm-with-signals.js";
document.head.append(
el("style").append(
"tr, td{ border: 1px solid red; padding: 1em; }",
"table{ border-collapse: collapse; }"
)
);
document.body.append(
el("p", "Example of a&nbsp;complex template. Using for example nesting lists:"),
el("ul").append(
el("li", "List item 1"),
el("li").append(
el("ul").append(
el("li", "Nested list item 1"),
)
)
),
el("table").append(
el("tr").append(
el("td", "Row 1 – Col 1"),
el("td", "Row 1 – Col 2")
)
)
);
</code></pre></div><script>Flems(document.getElementById("code-frx3p"), 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><h2>Creating advanced (reactive) templates and components</h2><h3>Basic 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"/>--><div id="code-xyr7h" class="example"><pre><code class="language-javascript">import { el } from "https://cdn.jsdelivr.net/gh/jaandrle/deka-dom-el/dist/esm-with-signals.js";
document.head.append(
el("style").append(
".class1{ font-weight: bold; }",
".class2{ color: purple; }"
)
);
document.body.append(
el(component, { className: "class2", textContent: "Hello World!" }),
component({ className: "class2", textContent: "Hello World!" })
);
function component({ className, textContent }){
return el("div", { className: [ "class1", className ] }).append(
el("p", textContent)
);
}
</code></pre></div><script>Flems(document.getElementById("code-xyr7h"), 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>It is nice to use similar naming convention as native DOM API.</p><script src="https://cdn.jsdelivr.net/npm/shiki"></script><script src="index.js" type="module"></script></body></html>

11
docs_src/components/example.html.js
View File

@ -1,4 +1,4 @@
let is_register= false;
let is_registered= false;
import { styles } from "../index.css.js";
export const css= styles().scope(example).css`
:host{
@ -18,10 +18,7 @@ export function example({ src, language= "javascript" }){
return el("<>").append(
el("div", { id, className: example.name }).append(
el("pre").append(
el("code", {
className: "language-"+language,
textContent: code
})
el("code", { className: "language-"+language, textContent: code })
)
),
elCode({ id, content: code })
@ -35,9 +32,9 @@ function elCode({ id, content }){
return el("script", `Flems(document.getElementById("${id}"), JSON.parse(${JSON.stringify(options)}));`);
}
function register(){
if(is_register) return;
if(is_registered) return;
document.head.append(
el("script", { src: "https://flems.io/flems.html", type: "text/javascript", charset: "utf-8" })
);
is_register= true;
is_registered= true;
}

24
docs_src/components/examples/dekaAppend.js Normal file
View File

@ -0,0 +1,24 @@
import { el } from "../../../index-with-signals.js";
document.head.append(
el("style").append(
"tr, td{ border: 1px solid red; padding: 1em; }",
"table{ border-collapse: collapse; }"
)
);
document.body.append(
el("p", "Example of a complex template. Using for example nesting lists:"),
el("ul").append(
el("li", "List item 1"),
el("li").append(
el("ul").append(
el("li", "Nested list item 1"),
)
)
),
el("table").append(
el("tr").append(
el("td", "Row 1 – Col 1"),
el("td", "Row 1 – Col 2")
)
)
);

25
docs_src/components/examples/dekaAssign.js Normal file
View File

@ -0,0 +1,25 @@
import { assignAttribute, classListDeclarative } from "../../../index-with-signals.js";
const paragraph= document.createElement("p");
assignAttribute(paragraph, "textContent", "Hello, world!");
assignAttribute(paragraph, "style", { color: "navy" });
assignAttribute(paragraph, "dataTest1", "v1");
assignAttribute(paragraph, "dataset", { test2: "v2" });
assignAttribute(paragraph, "ariaLabel", "v1");
assignAttribute(paragraph, "ariaset", { role: "none" });
classListDeclarative(paragraph, {
classAdd: true,
classRemove: false,
classAdd1: 1,
classRemove1: 0,
classToggle: -1
});
console.log(paragraph.outerHTML);
document.body.append(
paragraph
);

17
docs_src/components/examples/dekaBasicComponent.js Normal file
View File

@ -0,0 +1,17 @@
import { el } from "../../../index-with-signals.js";
document.head.append(
el("style").append(
".class1{ font-weight: bold; }",
".class2{ color: purple; }"
)
);
document.body.append(
el(component, { className: "class2", textContent: "Hello World!" }),
component({ className: "class2", textContent: "Hello World!" })
);
function component({ className, textContent }){
return el("div", { className: [ "class1", className ] }).append(
el("p", textContent)
);
}

11
docs_src/components/examples/dekaCreateElement.js Normal file
View File

@ -0,0 +1,11 @@
import { el, assign } from "../../../index-with-signals.js";
const color= "lightcoral";
document.body.append(
el("p", { textContent: "Hello (first time)", style: { color } })
);
document.body.append(
assign(
document.createElement("p"),
{ textContent: "Hello (second time)", style: { color } }
)
);

11
docs_src/components/examples/nativeAppend.js Normal file
View File

@ -0,0 +1,11 @@
document.body.append(
document.createElement("div"),
document.createElement("span"),
document.createElement("main")
);
console.log(document.body.innerHTML.includes("<div></div><span></span><main></main>"));
const template= document.createElement("main").append(
document.createElement("div"),
document.createElement("span"),
);
console.log(typeof template==="undefined");

14
docs_src/components/examples/nativeCreateElement.js Normal file
View File

@ -0,0 +1,14 @@
document.body.append(
document.createElement("div")
);
console.log(
"Emty div is generated inside <body>:",
document.body.innerHTML.includes("<div></div>")
);
document.body.append(
Object.assign(
document.createElement("p"),
{ textContent: "Element’s text content.", style: "color: coral;" }
)
);

93
docs_src/index.html.js
View File

@ -28,8 +28,8 @@ export function body(pkg){
"The main goals are:"
),
el("ul").append(
el("li", "provide a small wrapper around the native JavaScript DOM"),
el("li", "keep library size under 10kB"),
el("li", "provide a small wrappers/utilities around the native JavaScript DOM"),
el("li", "keep library size around 10kB at maximum (if possible)"),
el("li", "zero dependencies (if possible)"),
el("li", "prefer a declarative/functional approach"),
el("li", "unopinionated (allow alternative methods)"),
@ -43,7 +43,94 @@ export function body(pkg){
}),
".",
),
el(example, { src: "./components/examples/helloWorld.js" })
el(example, { src: "./components/examples/helloWorld.js" }),
el("h2", "Native JavaScript DOM elements creations"),
el("p", "Let’s go through all patterns we would like to use and what needs to be improved for better experience."),
el("h3", "Creating element(s) (with custom attributes)"),
el("p").append(
"You can create a native DOM element by using the ",
el("a", { href: "https://developer.mozilla.org/en-US/docs/Web/API/Document/createElement", title: "MDN documentation for document.createElement()" }).append(
el("code", "document.createElement()")
), ". ",
"It is also possible to provide a some attribute(s) declaratively using ", el("code", "Object.assign()"), ". ",
"More precisely, this way you can sets some ",
el("a", {
href: "https://developer.mozilla.org/en-US/docs/Glossary/IDL",
title: "MDN page about Interface Description Language"
}).append(
el("abbr", { textContent: "IDL", title: "Interface Description Language" })
), "."
),
el(example, { src: "./components/examples/nativeCreateElement.js" }),
el("p").append(
"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(…), { … })"), "."
),
el(example, { src: "./components/examples/dekaCreateElement.js" }),
el("p").append(
"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. ",
"Function prefers IDL and fallback to the ", el("code", "element.setAttribute"), " if there is no writable property in the element prototype."
),
el("p").append(
"You can study all JavaScript elements interfaces to the corresponding HTML elements. ",
"All HTML elements inherits from ", el("a", { textContent: "HTMLElement", href: "https://developer.mozilla.org/en-US/docs/Web/API/HTMLElement" }), ". ",
"To see all available IDLs for example for paragraphs, see ", el("a", { textContent: "HTMLParagraphElement", href: "https://developer.mozilla.org/en-US/docs/Web/API/HTMLParagraphElement" }), ". ",
"Moreover, the ", el("code", "assign"), " provides a way to sets declaratively some convenient properties:"
),
el("ul").append(
el("li").append(
"It is possible to sets ", el("code", "data-*"), "/", el("code", "aria-*"), " attributes using object notation."
),
el("li").append(
"In opposite, it is also possible to sets ", el("code", "data-*"), "/", el("code", "aria-*"), " attribute using camelCase notation."
),
el("li").append(
"You can use string or object as a value for ", el("code", "style"), " property."
),
el("li").append(
el("code", "className"), " (IDL – preffered)/", el("code", "class"), " are ways to add CSS class to the element. ",
"You can use string (similarly to ", el("code", "class=\"…\"") ," syntax in HTML) or array of strings. ",
"This is handy to concat conditional classes."
),
el("li").append(
"Use ", el("code", "classList"), " to toggle specific classes. This will be handy later when the reactivity via signals is beeing introduced.",
),
el("li").append(
"The ", el("code", "assign"), " also accepts the ", el("code", "undefined"), " as a 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. ",
el("em").append(
"For example, natievly the element’s ", el("code", "id"), " is removed by setting the IDL to an empty string."
)
)
),
el("p").append(
"For processing, the ", el("code", "assign"), " internally uses ", el("code", "assignAttribute"), " and ", el("code", "classListDeclarative"), "."
),
el(example, { src: "./components/examples/dekaAssign.js" }),
el("h3", "Native JavaScript templating"),
el("p", "By default, the native JS has no good way to define HTML template using DOM API:"),
el(example, { src: "./components/examples/nativeAppend.js" }),
el("p").append(
"This library therefore ooverwrites the ", el("code", "append"), " method to always return parent element."
),
el(example, { src: "./components/examples/dekaAppend.js" }),
el("h2", "Creating advanced (reactive) templates and components"),
el("h3", "Basic components"),
el("p").append(
"You can use functions for encapsulation (repeating) logic. ",
"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."
),
el(example, { src: "./components/examples/dekaBasicComponent.js" }),
el("p", "It is nice to use similar naming convention as native DOM API.")
);
}
function pageName(pkg){