15 function hasOwnProp(obj, k) {  argument
16   return ObjProto.hasOwnProperty.call(obj, k);
126 function isFunction(obj) {  argument
127   return ObjProto.toString.call(obj) === '[object Function]';
130 function isArray(obj) {  argument
131   return ObjProto.toString.call(obj) === '[object Array]';
134 function isString(obj) {  argument
135   return ObjProto.toString.call(obj) === '[object String]';
138 function isObject(obj) {  argument
139   return ObjProto.toString.call(obj) === '[object Object]';
181 function groupBy(obj, val, throwOnUndefined) {  argument
184   for (var i = 0; i < obj.length; i++) {
185     var value = obj[i];
195 function toArray(obj) {  argument
196   return Array.prototype.slice.call(obj);  argument
223 function each(obj, func, context) {  argument
224   if (obj == null) {
227   if (ArrayProto.forEach && obj.forEach === ArrayProto.forEach) {
228     obj.forEach(func, context);
229   } else if (obj.length === +obj.length) {
230     for (var i = 0, l = obj.length; i < l; i++) {
231       func.call(context, obj[i], i, obj);
236 function map(obj, func) {  argument
238   if (obj == null) {
241   if (ArrayProto.map && obj.map === ArrayProto.map) {
242     return obj.map(func);
244   for (var i = 0; i < obj.length; i++) {
245     results[results.length] = func(obj[i], i);
247   if (obj.length === +obj.length) {
248     results.length = obj.length;
266 function asyncFor(obj, iter, cb) {  argument
267   var keys = keys_(obj || {});
274       iter(k, obj[k], i, len, next);
286 function keys_(obj) {  argument
289   for (var k in obj) {
290     if (hasOwnProp(obj, k)) {
297 function _entries(obj) {  argument
298   return keys_(obj).map(function (k) {
299     return [k, obj[k]];
303 function _values(obj) {  argument
304   return keys_(obj).map(function (k) {
305     return obj[k];