What is the use of the javascript attributes attribute

This article mainly introduces "what is the use of the javascript attributes attribute". In the daily operation, I believe that many people have doubts about the use of the javascript attributes attribute. The editor consulted all kinds of materials and sorted out simple and easy-to-use methods of operation. I hope it will be helpful to answer the doubt of "what is the use of the javascript attributes attribute?" Next, please follow the editor to study!

In javascript, the attributes attribute can get and return the collection of attributes of the specified element node, that is, the NamedNodeMap object; the syntax "element node. Attributes".

The operating environment of this tutorial: windows7 system, javascript1.8.5 version, Dell G3 computer.

The attributes property returns the collection of attributes for the specified node, that is, the NamedNodeMap object.

Tip: you can use the length attribute to determine the number of attributes, and then you can traverse all the attribute nodes and extract the information you need.

Syntax: node.attributes

Return value: NamedNodeMap object, which represents a collection of properties.

Click the button to see how many attributes the button element has.