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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 Script src attribute

Previous: HTML DOM Script defer property

Next: HTML DOM Script text attributes

Examples

Get external URL script:

var x = document.getElementById("myScript").src

x The output is:

http://www.w3cschool.cc/jsref/demo_script_src.js

Definition and Usage

Sets or returns the value of the src attribute of the script src attribute.

src attribute specifies the URL of an external script file.

If you want to run the same JavaScript on the site of several pages, you should create an external JavaScript file, instead of repeating the same scripting. The extension .js script file to be saved, and then refer to it using the src attribute in <script> tag.

Note: The external script file can not contain <script> tag.

Note: The script is written correctly reference your external script file.

Browser Support

All major browsers support the src attribute.

grammar

Back src attribute:

scriptObject .src

Setting the src attribute:

scriptObject .src= URL

Property Value

值

描述

URL

外部脚本文件的 URL。

可能的值：

绝对 URL - 指向另一个网站（比如 src="http://www.example.com/example.js"）
相对 URL - 指向网站内的一个文件（比如 src="/scripts/example.js"）

technical details

return value:	String that represents the URL of an external script file. Returns the complete URL, including the protocol (such as http: //).

related articles

HTML Reference Manual: HTML <Script> the src attribute

Previous: HTML DOM Script defer property

Next: HTML DOM Script text attributes