Private class methods

**anjanesh** · Sep 17, 2007 10:39

Hi

Is it not possible to create a private method in an object ( which is essentially a function ) ?

Code JavaScript:

function foo1()
 {
        this.m = 0;
 
        function foo2()
         {
                this.m = 2;
         }
 
        this.foo3 = function()
         {
                this.m = 3;
         }
 
        foo2();
 }
 
var f = new foo1();
alert(f.m);
f.foo3();
alert(f.m);

displays 0, 3 when I thought it would display 2, 3.

Thanks

**bals28mjk** · Sep 17, 2007 14:43

Are you looking for something like this?

Code:

<html>
<head>
<script type="text/javascript">
function foo()
 {
        var m = 2;
 
        function foo2()
         {
                this.m =function(){alert(m)}
				this.count =function(){m++}
         }
 
 
        return new foo2();
 }
function caller() 
{
var f = new foo();
f.m();
f.count()
f.m();
}
</script>
</head>
<body>
<button onclick="caller() ">click</button>
</body>
</html>

**stereofrog** · Sep 18, 2007 02:00

Inner function don't have "this", you must pass it explicitly. Try replacing "foo2()" with "foo2.call(this)".

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