JS & DOM Reference
OverviewJavaScript Objects
JS Array JS Boolean JS Date JS Math JS Number JS String JS RegExp JS GlobalBrowser Objects
Window Navigator Screen History LocationCore DOM Objects
DOM Node DOM NodeList DOM NamedNodeMap DOM Document DOM Element DOM AttrHTML DOM Objects
DOM Document DOM Events DOM ElementsDOM Anchor DOM Area DOM Base DOM Body DOM Button DOM Form DOM Frame/IFrame DOM Frameset DOM Image DOM Input Button DOM Input Checkbox DOM Input File DOM Input Hidden DOM Input Password DOM Input Radio DOM Input Reset DOM Input Submit DOM Input Text DOM Link DOM Meta DOM Object DOM Option DOM Select DOM Style DOM Table DOM td / th DOM tr DOM Textarea
onload Event
Example
Execute a JavaScript when a page is finished loading:
<body onload="myFunction()">
Try it yourself »
(more examples at the bottom of this page)
Definition and Usage
The onload event occurs when an object has been loaded.
onload is most often used within the <body> element to execute a script once a web page has completely loaded all content (including images, script files, CSS files, etc.).
Syntax
In HTML:
<body
onload="SomeJavaScriptCode">
In JavaScript:
window.onload=function(){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>
Try it Yourself - Examples
onload on <img>
Alert "Image is loaded" immediately after an image has been loaded.
Event Object
Your suggestion:
Close [X]
Thank You For Helping Us!
Your message has been sent to W3Schools.
Close [X]
