JS37---Function.prototype

    //Add a function named name to the prototype function, and the function body is FNFunction.prototype.method=function(NAME,FN) { This. prototype[name] = fn;// This        return  This; }        //The method of extending the array, the name of the new method, the function body, the parameter, the argument        if(!Array.prototype.forEach) {        //Array.prototype.forEach = function (fn,thisobj) {}                //This.fns.forEach (function (EL) {El (O);} ) function (EL) {El (O) is a functional argumentArray.method ("ForEach",function(fn,thisobj) {//Forrach is the function name, followed by the function declaration, and fn,thisobj is the formal parameter in the declaration.            varScope = Thisobj | |window;  for(vari = 0; I < This. length; i++) {Fn.call (scope, This[I],i, This); }        })    }    if(!Array.prototype.filter) {        //this.fns.filter (function (EL) {if (el! = XXX) {return el;}})Array.method ("Filter",function(fn,thisobj) {varScope = Thisobj | |window; varA = [];  for(vari = 0; i < Array.Length; i++) {                if(!fn.call (Scope, This[I],i, This) ){                    Continue; } A.push ( This[i])}//..........................            returnA; })    }

Window. DED = window. ded| | {};//You use yourself, you don't use empty objects.Ded.util = Ded.util | | {}    //observersDED.util.Observer =function(){         This. FNS = []    }    //extend himDED.util.Observer.prototype = {        //observedSubscribe:function(FN) { This. Fns.push (FN); },        //Cancel ObservationUnsubscribe:function(FN) { This. FNS = This. Fns.filter (function(EL) {if(El! =fn) {                    returnel; }            })        },        //array of the loop execution function being observedFire:function(o) { This. Fns.foreach (function(EL) {El (O); })        }    }

function (e) {          var e = e | | window.event;           var src = E.target | | e.srcelement;           Try {            e.preventdefault ();          }           Catch (ex) {            false;          }

functionF () {}varf =function() {} Function.prototype.method=function(NAME,FN) {alert (1); } f.method ();//1F.method ();//1 functionF () {}varf =function() {} Function.prototype.method=function(NAME,FN) { This. prototype[name] =fn; return  This; } f.method ("A",function() {alert ("a");});//1F.method ("B",function() {alert ("B");});//1    //F.A ();//F.A is not a functionF.prototype.a ();//a    //f.b ();//f.b is not a functionF.prototype.b ()//b    NewF (). b ();//b

The parameter is considered to be the value of the member variable passed in by the constructor. Function names are considered class names. This is considered a member property and a member method.

    functionAddcar () { This. Name = 11;  This. Begin =function(){//the Member Method property of the object can be obtained in bracketsAlert (1); }    }    NewAddcar (). Begin ();//1AlertNewAddcar () ["Begin"]);//this.begin = function () {alert (1);}Alerttypeof NewAddcar () ["Begin"]);//function    NewAddcar () ["Begin"] ();//1AlertNewAddcar () ["name"]);// One        varRR =NewAddcar (); rr["Age"] = 444; Alert (rr["Age"]);//444rr["fff"] =function() {Alert (777);} rr["FFF"] ();//777

JS37---Function.prototype