javascript inheritance example

parameter, the second argument is treated as target if (typeof target = = = "Boolean") {deep = target; Skip the Boolean and the target target = arguments[I] | | {}; I++ is for the follow-up i = = length judgment i++; //Handle case when the target is a string or something (possible in deep copy)//If the target is neither an object nor a method (for example, to the base class Type extended attribute m

This article will help you better understand the six inheritance methods of JavaScript, which are of great reference value, for more information, see the following Section. This article will help you better understand the six inheritance methods of JavaScript. It is very good and has reference value. For more informati

" through the prototype chain. In this example, the triangle object does not have the height and width attributes, so JavaScript will use the prototype chain to find them on the shape object. When we call triangle. when area () is used, the area () method of the triangle object is actually executed, rather than the shape object. Since the triangle object already has this attribute, you do not need to searc

have been discussing the basics of prototyping and inheritance issues in JavaScript. It's not like the classic inheritance pattern you know in C + +, Java, or C #, but it's equally powerful and potentially more flexible.About objects and classesJavaScript is all about objects, which refer to objects in the traditional sense, "a single entity that contains state

"]; var Anotherperson = Createanother (person); Anotherperson.sayhi ();///"HI" 6. Parasitic Modular inheritance Basic idea: Inherit the attribute through the borrowing function, inherit the method through the hybrid form of the prototype chain The basic model looks like this: function Inheritproperty (subtype, supertype) { var prototype = object (supertype.prototype);//Create Objects Prototype.constructor = subtype;//Enhanced object Sub

There is no doubt that this approach is relatively easy to understand, calling the constructor of the parent class in subclasses. In addition, the biggest advantage of this method is that the construction of inheritance can achieve multiple inheritance, review this code: Copy Code code as follows: function A () { } function B () { } function C () { This.father=a; This.father (

This article describes how to implement similar OOP inheritance based on prototype in javascript. The example shows how to use prototype to implement class inheritance in object-oriented programming, if you need it, refer to the example in this article to describe how

Nanyi This article is very well written.Http://www.ruanyifeng.com/blog/2011/06/designing_ideas_of_inheritance_mechanism_in_javascript.htmlThe notes are as follows:It has been difficult to understand the inheritance mechanism of JavaScript language. It does not have the concept of "subclass" and "parent class", and there is nodistinction between "class" and "instance" (instance), and it relies on a very pecu

, and they can be replaced with some very short names (generally single character names) during release, so that they can be fully compressed and obfuscated. And reduces bandwidth usage, and can truly hide details.Therefore, encapsulation is very useful for javascript!So what is the purpose of javascript inheritance?2.2 why inheritIn other object-oriented program

Object-oriented and Object-based Almost every developer has development experience in object-oriented languages (such as C ++, C #, and Java. In traditional object-oriented languages, there are two very important concepts: classes and instances. Class defines the common behaviors and methods of a class of things, while the instance is a specific implementation of the class. We also know that object-oriented programming has three important concepts: encapsulation,

Object-oriented and Object-based Almost every developer has development experience in object-oriented languages (such as C ++, C #, and Java. In traditional object-oriented languages, there are two very important concepts: classes and instances. Class defines the common behaviors and methods of a class of things, while the instance is a specific implementation of the class. We also know that object-oriented programming has three important concepts: encapsulation,

JavaScript is an object-oriented language. In JavaScript there is a classic word that all things are objects. Since it is object-oriented, there are three main features of object-oriented: encapsulation, inheritance, polymorphism. This is about the inheritance of JavaScript,

JavaScript as an object-oriented language (JS is object-based), you can implement inheritance is essential, but because it does not have the concept of class, so does not like the real object-oriented programming language through the class implementation of inheritance, but can be implemented in other ways inheritance.

1. Objects in JavaScript JavaScript can be said to be an object-based programming language, why it is object-based rather than object-oriented, because JavaScript itself only implements encapsulation, and does not implement inheritance and polymorphism. Since he is based on the object, then we say the object in JS. Som

This article describes how to solve the problem of no-parameter and parameter-class inheritance in Javascript. This article explains the problem of non-parameter class inheritance and the problem of parameter-class inheritance, and provides a solution, for more information about Ja