// Create element with properties
const button = document.createElement('button');
button.textContent = "Click me";
button.className = "primary";
button.disabled = true;

// Or using Object.assign()
const button2 = Object.assign(
  document.createElement('button'),
  {
    textContent: "Click me",
    className: "primary",
    disabled: true
  }
);

// Add to DOM
document.body.appendChild(button);
document.body.appendChild(button2);