Common DOM methods in js

This article mainly introduces common DOM methods in js and has good reference value. Let's take a look at the following section to introduce several common methods of js DOM.

Get the Element Node getElementById getElementsByTagName getElementsByClassName

First, write a simple webpage for testing:

/* Test.html */

  Test 
The id of this section is contentId.
 
The class name in this section is contentClass.

1. getElementById

1. First define the variable var contentId = document. getElementById ("contentId ");

2. Then the output object contentId returns the element object whose id is contentId (

). See:

The above is all the content of this article. I hope this article will help you in your study or work, and I also hope to support PHP!

For more details about common Javascript DOM methods, refer to the PHP Chinese website!