JavaScript utility functions

forEachInObject.js

var forEachInObject = (function () {
    'use strict';

    var fn = function ( f, args ) {
        var o = this,
            keys = Object.keys( o ),
            i, key;

        i = 0;
        while ( (key = keys[i++]) ) {
            f.apply( o[key], args );
        }
    };

    if ( null == Object.keys ) {
        fn = function ( f, args ) {
            var o = this, p;
            for ( p in o ) {
                if ( o.hasOwnProperty(p) ) {
                    f.apply( this, args );
                }
            }
        };
    }

    return function ( f, args ) {
        fn.call( this, f, args );
    };
} ());