javascript instantiate class

What I want to say today is, how to write classes and static classes in JavaScript, this is my usual method, you can also have more convenient, can also send comments to communicate with you. First of all, class, in a class we will have the following characteristics: 1. Public methods 2. Private method 3. Property 4. Private variables 5. destructor Let's look dir

A complete example of the Map set tool class implemented by Javascript, and a map tool class This example describes the Map set tool class implemented by Javascript. Share it with you for your reference. The details are as follows: Var Map = function () {// construct the ent

Reference Nanyi's article: http://javascript.ruanyifeng.com/oop/inheritance.html#toc4functionShape () { This. x = 0; This. y = 0;} Shape.prototype.move=function(x, y) { This. x + =x; This. Y + =y; Console.info (' Shape moved. ');};functionRectangle () {Shape.call ( This);//calling the parent class constructor}//Another way of writingfunctionRectangle () { This. Base =Shape; This. Base ();}//subclass inherits methods of parent classRectangle.prototy

What is the prototype chain??? The concept of C/c++/java class has been deep in my heart, and suddenly this is not suitable. What's the use?And see the back ES6 grammar, unexpectedly also joined the class?????What the hell? Isn't that a hit on your face?Maybe there's something useful in the back, but I haven't found it yet.A brief explanation of the prototype chain78655038Class inheritance is through the pr

I. Object-oriented technology in JavaScript (solving how to use the fatigue in JS programming)1. Examples of collection classesThe collection represents a non-repeating unordered collection. Two basic methods: A. Add to Collection B. Whether in the collection.　　　　Reference: p218 set.js2. Enumeration examplesEnumeration represents a limited set of values.　　　　Examples of PokerTwo. Standard conversion method1. toString (); Tolocalstring ();2. ValueOf ();

One, overview In the Java language, we can define our own classes and use them to create objects based on these classes, and in JavaScript we can define our own classes, such as defining the user class, Hashtable class, and so on. There are already some standard classes in JavaScript, such as date, Array, RegExp, S

In the Java language, we can define our own classes and create objects from them, and in JavaScript we can also define our own classes, such as defining the user class, the Hashtable class, and so on. One, overviewIn the Java language, we can define our own classes and create objects from them, and in JavaScript we ca

AppBaseJs class library. It is written based on common functions on the Internet and other js class libraries for your convenience. The Code is as follows: /*-----------------------------------Web Application JavaScript Library2009.11 janchie------------------------------------*/// String native object extension left and right SpacesString. prototype. trim = fu

In the previous section of the JavaScript object-oriented namespace, you said how to define a JavaScript namespace, which is followed by a concept-class. Although there is no class keyword in JavaScript, we must have this idea as a developer. Classes can be divided into inst

size images for different terminals, do not use the original image to reduce the replacement ICON, such as some picture services such as OSS. Use the appropriate image format, such as using the WEBP format. Detailed picture format comparison, use scenes and other suggestions to view the Web front-end picture limit optimization strategy. Load on demand and render images on demand. When preloading a picture, remember to assign the IMG object NULL, otherwise it will cause the picture m