13131

    // Object.assign
    if (typeof Object.assign != 'function') {
        Object.assign = function (target, varArgs) {
            // .length of function is 2
            if (target == null) {
                // TypeError if undefined or null
                throw new TypeError('Cannot convert undefined or null to object');
            }

            var to = Object(target);

            for (var index = 1; index < arguments.length; index++) {
                var nextSource = arguments[index];