Latest web development tutorials

×

JavaScript Reference

JavaScript

JS String JS Number JS Operators JS Statements JS Math JS Date JS Array JS Boolean JS RegExp JS Global JS Conversion

Browser BOM

Window Navigator Screen History Location

HTML DOM

DOM Document DOM Elements DOM Attributes DOM Events DOM Style

HTML Objects

<a> <abbr> <address> <area> <article> <aside> <audio> <b> <base> <bdo> <blockquote> <body> <br> <button> <canvas> <caption> <cite> <code> <col> <colgroup> <datalist> <dd> <del> <details> <dfn> <dialog> <div> <dl> <dt> <em> <embed> <fieldset> <figcaption> <figure> <footer> <form> <head> <header> <h1> - <h6> <hr> <html> <i> <iframe> <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> password <input> radio <input> range <input> reset <input> search <input> submit <input> text <input> time <input> url <input> week <kbd> <keygen> <label> <legend> <li> <link> <map> <mark> <menu> <menuitem> <meta> <meter> <nav> <object> <ol> <optgroup> <option> <output> <p> <param> <pre> <progress> <q> <s> <samp> <script> <section> <select> <small> <source> <span> <strong> <style> <sub> <summary> <sup> <table> <td> <th> <tr> <textarea> <time> <title> <track> <u> <ul> <var> <video>

Other Objects

CSSStyleDeclaration

Video duration Property

Example

Get the length of a video:

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

The result of x could be:

12.612

Try it Yourself »

Definition and Usage

The duration property returns the length of a video, in seconds.

Note: Different browsers return different values. In the example above, Internet Explorer, Firefox and Chrome returns "12.612". Safari returns "12.612000465393066", Opera 12 returns "12.585215419", while Opera 18 returns "12.62069".

Note: This property is read-only.

Browser Support

The duration property is supported in all major browsers.

Note: This property is not supported in Internet Explorer 8 and earlier versions.

Syntax

videoObject.duration

Technical Details

Return Value:	A Number, representing the length of the video, in seconds. If no video is set, "NaN" (Not-a-Number) is returned. If the video is streamed and has no predefined length, "Inf" (Infinity) is returned.