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cschep/gist:4181917ce4c78f457816

Created March 24, 2015 21:24
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javascript closure example
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gistfile1.txt
<!DOCTYPE html>
<html>
<head>
<title>a quick example</title>
<style type="text/css">
button {
font-size: 22pt;
width: 100px;
height: 100px;
}
</style>
</head>
<body>
<button id="1">one</button>
<button id="2">two</button>
<button id="3">three</button>
<button id="4">four</button>
<button id="5">five</button>
<script>
/*
//doesn't work !
for (var i = 1; i < 6; i++) {
document.getElementById(i).addEventListener('click', function() {
console.log(i);
});
}
//works !
for (var i = 1; i < 6; i++) {
document.getElementById(i).addEventListener('click', function(val) {
return function() {
console.log(val);
}
}(i));
}
*/
</script>
</body>
</html>
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