JS HTML DOM

The HTML DOM (Document Object Model) is a standard for how to get, change, add, or delete HTML elements.

Finding HTML Elements

JavaScript can access and manipulate HTML elements in several ways:

• document.getElementById(id): Finds an element by element id.
• document.getElementsByTagName(name): Finds elements by tag name.
• document.getElementsByClassName(name): Finds elements by class name.

Example: Changing HTML Content

<p id="demo"></p>
<script>
document.getElementById("demo").innerHTML = "Hello World!";
</script>