jquery1.7.2 source Analysis (c) $. Deferred

A detailed explanation of the examples

Filter Resolve

How does the code above work?

Click the button first to execute $. Deferred (), get defer with a lot of methods

Defer.resolve (5);

var donelist = jquery.callbacks ("Once Memory"), Faillist = Jquery.callbacks ("Once Memory"), Progresslist = Jquery.callba CKS ("Memory"), state = "Pending"; lists = {resolve:donelist,reject:faillist,notify:progresslist}for (key in lists) {D eferred[key] = lists[key].fire;deferred[key + "with"] = lists[key].firewith;} According to the above code can be//deferred[' resolve ']=lists[' resolve '].fire;//deferred[' resolvewidth ']=lists[' resolve '].firewith;// deferred[' reject ']=lists[' reject '].fire;//deferred[' rejectwidth "]=lists[' Reject '].firewith;//deferred[' notify ' ]=lists[' notify '].fire;//deferred[' Notifywidth ']=lists[' notify '].firewith;//so resolve (5) executed the

fire:function () {Self.firewith (this, arguments); Return this;},firewith:function (context, args) {//stack=[]; for true;firing false;flag={} if (stack) {if (fi            Ring) {if (!flags.once) {Stack.push ([context, args]);        }//memory =undefined} else if (! (flags.once && memory)) {Fire (context, args); }} return this;} 

Fire = function (context, args) {args = args | | [];//memory = [context, args]; that is self, and 5 memory =!flags.memory | |        [Context, args];        Fired = true;        firing = true; Firingindex = Firingstart | |        0;        Firingstart = 0;        Firinglength = List.length; for (; list && Firingindex < firinglength; firingindex++) {//The function is false after execution and Flags.stoponfalse is true when memory = TR                ue;//Note that this executes the function if (list[firingindex].apply (context, args) = = = False && flags.stoponfalse) { Memory = true;            Mark as halted break;        }} firing = false; if (list) {if (!flags.once) {if (stack && stack.length) {mem                    Ory = Stack.shift ();                Self.firewith (memory[0], memory[1]);            }} else if (memory = = = True) {self.disable ();       } else {//Finally, the list function group is assigned an empty value         list = []; }        }    }

jquery1.7.2 's source code Analysis (c) $. Deferred