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JavaScript & HTML DOM Reference Manual

Overview

JavaScript Object

JavaScript Array Object JavaScript Boolean Object JavaScript Date Object JavaScript Math Object JavaScript Number Object JavaScript String Object JavaScript RegExp Object JavaScript Global properties / functions JavaScript Operator

Browser Object

Window Object Navigator Object Screen Object History Object Location Object

DOM Object

HTML DOM Document Object HTML DOM Element object HTML DOM Attribute object HTML DOM Event object

HTML Object

<a> <area> <audio> <base> <blockquote> <body> <button> <canvas> <col> <colgroup> <datalist> <del> <details> <dialog> <embed> <fieldset> <form> <iframe> <frameset > <img> <ins> <input> - button <input> - checkbox <input> - color <input> - date <input> - datetime <input> - datetime-local <input> - email <input> - file <input> - hidden <input> - image <input> - month <input> - number <input> - range <input> - password <input> - radio <input> - reset <input> - search <input> - submit <input> - text <input> - time <input> - url <input> - week <keygen> <link> <label> <legend> <li> <map> <menu> <menuItem> <meta> <meter> <object> <ol> <optgroup> <option> <param> <progress> <q> <script> <select> <source> <style> <table> <td> <th> <tr> <textarea> <title> <time> <track> <video>

HTML DOM nodeValue property

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Next: HTML DOM nodeType property

Examples

Get value of the first node button element:

document.getElementsByTagName("BUTTON")[0].childNodes[0].nodeValue;

Output:

尝试一下

Definition and Usage

Depending on the type of node nodeValue property sets or returns the value of a node.

Note: If you want to return elements of text, remember the text is usually inserted into the text node, the returned value is the node text node (element .childNodes [0] .nodeValue) .

Tip: Another way to get the value of an attribute node textContent property .

Browser Support

All major browsers support nodeValue property

grammar

Set the node values:

node .nodeValue= value

Returns the node value:

node .nodeValue

technical details

return value:	String node value.
DOM version	Core Level 1 Node Object

Previous: HTML DOM normalize method

Next: HTML DOM nodeType property