javascript typeof class name

') {var str = (typeofThis.opts.data = = =' String ') This.opts.data | |This.objectToString.call (ThisThis.opts.data);this.xhr.setrequestheader ( ' Content-type ', application/x-www-form-urlencoded '); this.xhr.send (str);} }, Objecttostring: function ( Data) {if (typeof data!== ' object ' ) return data; var str = "; for (var prop in data) {str + = ' ' + prop + ' = ' + Data[prop];} return str.slice (1);}} Exports. Ajax = Ajax;}) (window, documen

(Searchvalue,replacevalue) methodThe method replaces the first occurrence of the Searchvalue substring in a string with Replacevalue and returns a new string. The original string is not affected.For example: Var str1= "AAAA";var str2=str1.replace ("A", "B");alert (str2);//Output "BAAA"alert (str1);//Output "AAAA"As you can see in the code above, you can only replace one instance with the Replace function. If you are replacing multiple instances, you need to use regular expressions, such as str.

(function (){ varJtimer =function() { //Init if(Arguments.length >= 1) { This. Setendtime (Arguments[0]); } if(Arguments.length >= 2) { This. Setgeneratecallback (arguments[1]); } }; Jtimer.prototype.setEndTime=function () { if(Arguments.length = = 1) { This. EndTime = Arguments[0];//Date}} Jtimer.prototype.getMillisecond=function () { return This. Endtime.gettime ()-NewDate (). GetTime (); }; Jtimer.prototype.se

In object-oriented programming, classes (Class) are templates of objects (object) that define properties and methods that are common to the same set of objects (also known as "instances"). The JavaScript language does not support "classes," but you can simulate "classes" in some alternative way. First, the structural function method This is the classical method, is also the textbook must teach the method

3 ways to define a JavaScript classseptember 29th, 2006. Tagged:javascriptintroductionJavaScript is a very flexible object-oriented language if it comes to syntax. In this article you can find three ways of defining and instantiating an Object. Even if you have already picked your favorite the doing it, it helps to know some alternatives on order to read other P Eople ' s Code.It's important to note that there is no classes in

implementation mechanism is not the same. Here's new creates an object, which points to this new object object when the subsequent point () function executes. The this.x and This.y in point are two public members of the point class, so objects of point can be accessed directly from them. When it comes to members of class members or objects, it is unavoidable to mention accessibility issues. In

In JavaScript, a function is actually an object, each function is an instance of a function class, and since it has its own properties and methods, the function name is actually a pointer to a function object and is not bound to a function.Declaration of a functionWay one: Conventional wayfunction sum1 (num1,num2) {2 return num1+3} Mode two: function expre

The object class in ECMAScript is similar to the object class in Java, and all classes in the ECMAScript are inherited by this class, andall properties and methods in the object class appear in other classes . So understanding the object class makes it easier to understand o

Reference: https://www.imooc.com/article/17389Https://www.cnblogs.com/chenyangsuaige/p/6130737.htmlInheritance can be well encapsulated, subclasses can reuse the methods of the parent class directly, and add their own properties and methods.The prototype object prototype is a unique identifier for the class, and the inheritance of the class is based on prototype.

Among the several javascript class definition methods, the most common method is the combination of prototypeconstructor and dynamic prototype. There are several methods to build a class in Javascript: 1. Factory method The Code is as follows: Function createCar (){Var car = new Object ();Car. color = "B ";Car. leng

Original address: http://www.cnblogs.com/zhangpengshou/archive/2012/07/19/2599053.htmlThe combination of Meizz code makes the appropriate adjustments.Date.prototype.Format =function(FMT) {varthat = This; varPostfix =false; varo = { "m+": This. GetMonth () + 1,//Month"D+": This. GetDate (),// Day"H +":function () { returnPostfix? (that.gethours ()% = = 0? 12:that.gethours ()% 12): That.gethours (); }, //Hour"m+": This. getminutes (),//minute"S+": This. getseconds (),//Second"q+"

inheritance on the prototype, so the combination isfunction fn (name) { this.score = [90,98,99] this.name = name}fn.prototype.sayName = function() { console.log(this.name) }function a () { fn.call(this,‘kangkang‘) this.age = 3}a.prototype = new fn()a.prototype.constructor = avar c = new a()var d = new a()c.score[0] = 100console.log(c.score) //[100, 98, 99]console.log(d.score) //[90, 98, 99]console.