bower/lib/node_modules/mout/src/object/keys.js

The browser package manager

define(['./forOwn'], function (forOwn) {

    /**
     * Get object keys
     */
     var keys = Object.keys || function (obj) {
            var keys = [];
            forOwn(obj, function(val, key){
                keys.push(key);
            });
            return keys;
        };

    return keys;

});