An event handler for the select event on the window.


window.onselect = funcRef;
  • funcRef is a function.


<title>onselect test</title>
<style type="text/css">
.text1 { border: 2px solid red; }
<script type="text/javascript">
window.onselect = selectText;
function selectText()
 alert("select event detected!");
<textarea class="text1" cols="30" rows="3">
Highlight some of this text
with the mouse pointer
to fire the onselect event.


The select event only fires when text inside a text input or textarea is selected. The event is fired after the text has been selected.


Specification Status Comment
WHATWG HTML Living Standard
The definition of 'onselect' in that specification.
Living Standard  

Browser Compatibility

Feature Chrome Edge Firefox (Gecko) Internet Explorer Opera Safari (WebKit)
Basic support (Yes) (Yes) ? ? ? ?
Feature Android Android Webview Chrome for Android Edge Firefox Mobile (Gecko) Firefox OS IE Mobile Opera Mobile Safari Mobile
Basic support ? (Yes) (Yes) (Yes) ? ? ? ? ?

Document Tags and Contributors

 Last updated by: erikadoyle,