67   var optimizeCb = function(func, context, argCount) {  argument
68     if (context === void 0) return func;
71         return func.call(context, value);
76         return func.call(context, value, index, collection);
79         return func.call(context, accumulator, value, index, collection);
83       return func.apply(context, arguments);
109   var restArgs = function(func, startIndex) {  argument
110     startIndex = startIndex == null ? func.length - 1 : +startIndex;
118         case 0: return func.call(this, rest);
119         case 1: return func.call(this, arguments[0], rest);
120         case 2: return func.call(this, arguments[0], arguments[1], rest);
127       return func.apply(this, args);
286       var func = isFunc ? method : value[method];
287       return func == null ? func : func.apply(value, args);
740   _.bind = restArgs(function(func, context, args) {  argument
741     if (!_.isFunction(func)) throw new TypeError('Bind must be called on a function');
743       return executeBound(func, bound, context, this, args.concat(callArgs));
752   _.partial = restArgs(function(func, boundArgs) {  argument
761       return executeBound(func, bound, this, this, args);
782   _.memoize = function(func, hasher) {  argument
786       if (!_.has(cache, address)) cache[address] = func.apply(this, arguments);
795   _.delay = restArgs(function(func, wait, args) {  argument
797       return func.apply(null, args);
810   _.throttle = function(func, wait, options) {  argument
818       result = func.apply(context, args);
834         result = func.apply(context, args);
855   _.debounce = function(func, wait, immediate) {  argument
860       if (args) result = func.apply(context, args);
868         if (callNow) result = func.apply(this, args);
887   _.wrap = function(func, wrapper) {  argument
888     return _.partial(wrapper, func);
912   _.after = function(times, func) {  argument
915         return func.apply(this, arguments);
921   _.before = function(times, func) {  argument
925         memo = func.apply(this, arguments);
927       if (times <= 1) func = null;
1569       var func = _[name] = obj[name];
1573         return chainResult(this, func.apply(_, args));