Summary of methods for finding nodes in js_javascript skills

The example in this article summarizes the method of finding nodes in js. Share it with everyone for your reference. The specific analysis is as follows:

Here are three ways to find nodes:

1. Search based on id, the return value is an object:

Copy code The code is as follows:

document.getElementById( );

2. Search based on html tags such as div/p/.... and return an array (actually also an object)

Copy the code The code is as follows:

document.getElementsByTagName();

3. Use it in the form and search for

according to the form name. Copy the code . The code is as follows:

document.getElementsByName();

Special note: At present, some browsers have extended getElementsByName to other element nodes, that is, if div/p... and other tags have a name attribute, they can also be used; however, IE browsers can only be used in forms. Therefore, to maintain compatibility, it should only be used within forms.

I hope this article will be helpful to everyone’s JavaScript programming design.