May 09, 2021 HTML DOM
HTML DOM method is the action we can perform on nodes (HTML elements), learning HTML DOM method is essential for you to learn HTML DOM, start your learning!
HTML DOMs are accessible through JavaScript (and other programming languages).
All HTML elements are defined as objects, while programming interfaces are object methods and object properties.
Methods are actions that you can perform, such as adding or modifying elements.
A property is a value that you can get or set, such as the name or content of a node.
The getElementById() method returns an element with a specified ID:
Some common HTML DOM methods:
Some common HTML DOM properties:
You'll learn more about attributes in the next chapter of this tutorial.
Someone is an object.
The human method may be eat(), sleep(), work(), play() and so on.
Everyone has these methods, but they are executed at different times.
A person's attributes include name, height, weight, age, gender, and so on.
Everyone has these properties, but their values vary from person to person.
Here are some common ways you'll learn in this tutorial:
| Method | Describe |
|---|---|
| getElementById() | Returns an element with the specified ID. |
| getElementsByTagName() | Returns a list of nodes (an array of collections/nodes) that contain all elements with the specified label name. |
| getElementsByClassName() | Returns a list of nodes that contain all elements with the specified class name. |
| appendChild() | Add a new child node to the specified node. |
| removeChild() | Remove the child node. |
| replaceChild() | Replace the child node. |
| insertBefore() | Insert a new child node in front of the specified child node. |
| createAttribute() | Create a property node. |
| createElement() | Create an element node. |
| createTextNode() | Create a text node. |
| getAttribute() | Returns the specified property value. |
| setAttribute() | Set or modify the specified property to the specified value. |
The common object methods used by HTML DOM in the table above are very useful, so you can't write them down, so it's best to be able to favorite them or save pages to favorites for later!