Specification
[1]
Syntax
<div id="box"> <button>1</button> <button>2</button> <button>3</button> </div>
<script type="text/javascript"> function closure() { function log(i) { return function () { alert(i); }; } var buttons = document.getElementById("box").getElementsByTagName("button"), handler; for (var i = 0, l = buttons.length; i < l; i++) { handler = log(i + 1); buttons[i].onclick = //function () { alert(i + 1); }; // failure //function () { handler(); }; // failure //log(i + 1); // success handler; // success } } closure(); </script>
Example
1
2
3