event.data


event.dataReturns: Object

Description: An optional object of data passed to an event method when the current executing handler is bound.

  • version added: 1.1event.data

Example:

Within a for loop, pass the value of i to the .on() method so that the current iteration's value is preserved.

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<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>event.data demo</title>
<script src="//code.jquery.com/jquery-1.10.2.js"></script>
</head>
<body>
<button> 0 </button>
<button> 1 </button>
<button> 2 </button>
<button> 3 </button>
<button> 4 </button>
<div id="log"></div>
<script>
var logDiv = $( "#log" );
for ( var i = 0; i < 5; i++ ) {
$( "button" ).eq( i ).on( "click", { value: i }, function( event ) {
var msgs = [
"button = " + $( this ).index(),
"event.data.value = " + event.data.value,
"i = " + i
];
logDiv.append( msgs.join( ", " ) + "<br>" );
});
}
</script>
</body>
</html>

Demo: