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JS & DOM Reference

Overview

JavaScript Objects

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onload Event

Event Object Reference Event Object

Example

Execute a JavaScript immediately after a page has been loaded:

Try it yourself »
(more examples at the bottom of this page)

Definition and Usage

The onload event occurs when an object has been loaded.

Syntax

In HTML:

<element onload="SomeJavaScriptCode">

In JavaScript:

object.onload="SomeJavaScriptCode"

Parameter	Description
SomeJavaScriptCode	Required. Specifies a JavaScript to be executed when the event occurs

Browser Support

The onload event is supported in all major browsers.

onload is Supported by the Following HTML Tags:

<body>, <frame>, <frameset>, iframe, <img>, <input type="image">, <link>, <script>, <style>

onload is Supported by the Following JavaScript Objects:

Document, Window, XMLDocument, XMLHttpRequest

Try it Yourself - Examples

onload on <img>
Alert "Image is loaded" immediately after an image has been loaded.

Event Object

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