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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 Audio duration property

Previous: HTML DOM Audio playbackRate property

Next: HTML DOM Audio ended property

Examples

Get the current length of the audio:

var x = document.getElementById("myAudio").duration;

x The output is:

1.515102

Definition and Usage

duration property returns the current length of the audio, in seconds.

Note: Different browsers return a different value. In the example above, and Opera 18+ Chrome returns "1.515102." Firefox returns "1.509298." Internet Explorer Returns "1.5491875." Safari Back "1.5149999856948853." Opera 12 Returns "1.5092970520000002."

Note: This property is read-only.

Browser Support

All major browsers support duration property.

Note: Internet Explorer 8 and earlier versions of IE does not support this property.

grammar

audioObject .duration

technical details

return value:	Numeric value that indicates the length of the audio, in seconds. If you do not set the audio, NaN (not a number) is returned. If the audio stream is no predefined length, returns "Inf" (Infinity: infinite).

Audio Object Reference

Previous: HTML DOM Audio playbackRate property

Next: HTML DOM Audio ended property