onblurEvent

事件对象参考手册Event Object

Examples

Execute a piece of JavaScript code when the user leaves the input field:

<input type="text" onblur="myFunction()">

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Definition and Usage

The onblur event occurs when an object loses focus.

Onblur is often used for JavaScript validation code, generally for form input fields.

Tip:The opposite event of onblur is theonfocusevent.

Syntax

In HTML:

<element onblur="SomeJavaScriptCode">

In JavaScript:

object.onblur=function(){SomeJavaScriptCode};

Parameters Description
SomeJavaScriptCode Required. Specifies the JavaScript to execute when the event occurs.


Browser Support

Internet ExplorerFirefoxOperaGoogle ChromeSafari

All major browsers support the onblur event


HTML tags that support the onblur event:

The onblur attribute can apply to all HTML elements, except: <base>, <bdo>, <br>, <head>, <html>, <iframe>, <meta>, <param>, <script>, <style>, and <title>.


事件对象参考手册Event Object Other Extensions