Javascript for..in looping over arguments ie.for( arg in arguments) does not work in IE8 but it works in Chrome 8

Question

I faced this strange situation where foreach like construct of javascript does not work in IE but it works in FF. Well not all for..in just this special funcito

Answer 1

Try using this as a format function:

String.prototype.format = function() {
    var me = this;
    for (var i = 0; i < arguments.length; i++)
        me = me.replace(new RegExp('\\{' + i + '\\}', 'g'), arguments[i]);
    return me;
}

Now this should work:

alert('The {0} is dead. Don\'t code {0}. Code {1} that is open source!'.format('ASP', 'PHP'))

DEMO

Tested and working in IE