Use this to reference function context in JavaScript
Description
The following code shows how to use this to reference function context.
Example
<!-- ww w . java 2 s .c o m-->
<!DOCTYPE html>
<html>
<head>
<script type="text/javascript">
window.color = "A";
var o = { color: "B" };
function sayColor(){
document.writeln(this.color);
}
sayColor(); //A
o.sayColor = sayColor;
o.sayColor(); //B
</script>
</head>
<body>
</body>
</html>
The code above generates the following result.
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