File Under: JavaScript

JavaScript Event – Paste

This code was written based on a template by John Resig. The original can be found at John Resig’s addEvent function website.

The code, and the template, are referred to in Webmonkey’s JavaScript Events reference page. In this example, the onPaste event fires whenever a form field’s contents are pasted with the user’s local paste function (ctrl-v, edit menu, or contextual menu). The event can also be attached to the window object to catch pasting anywhere on the page.

The Code




// addEvent function by John Resig:


function addEvent( obj, type, fn ) {

  if ( obj.attachEvent ) {

    obj['e'+type+fn] = fn;

    obj[type+fn] = function(){obj['e'+type+fn]( window.event );}

    obj.attachEvent( 'on'+type, obj[type+fn] );

  } else

    obj.addEventListener( type, fn, false );





<!-- HTML for example event goes here -->

<input id="myinput" type="text" value="Paste into this text" />


// Script for example event goes here

addEvent(document.getElementById('myinput'), 'paste', function(event) {

	alert('You pasted some text');





What it Looks Like