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This article mainly introduces the knowledge points of object-oriented programming in javascript, outlines object-oriented programming, and sorts out various methods. If you are interes
JavaScript is an object-based (object-based) language, and almost all of the things you encounter are objects. However, it is not a true object-oriented programming (OOP) language because its syntax has no class (class).
So what
read attribute , the object.defineproperties () method, can obtain a descriptor for a given property, which accepts 2 parameters:Where the object is located and to read the description name, the return value is an object, and if it is an accessor property, the object hasConfigurable,enumerable,get,setif it is a data attribute, this
. colors=["Red", "Blue"];} function Subtype () {Supertype.call (this);} var New subtype (); Instance1.colors.push("Black"); alert (instance1.colors) ; // Red Blue Black var New subtype (); alert (instance2.colors); // Red BlueCombination Inheritance:function Supertype (name) {this.name = Name;this.colors = ["Red", "Blue"];} SuperType.prototype.sayName = function () {alert (this.name);}; Function subtype (name,age) {supertype.call (this,name);//inheritance Property This.age = age;} Inheritance me
object (the browser is a Window object), so after the function is called, sayname () can be called through the Window object, or by call () (Apply () Call the person () function in the scope of a particular object, which is called in the scope of O, so after the call, O has all the properties and methods.4. Prototype
Then, prototype can be used to dynamically enhance the object, then some JS primitive class, do not provide the function we want, we can use prototype to enhance it.Here are some specific cases, I hope you can extrapolate:Tail to Empty string.prototype.trim=function () {return this.replace (/^\s+|\s+$/igm, ');}; Alert ("' abc ' length = = =" + ' ABC ');//measure the length of the empty after the alert ("' ABC ' to empty after the length =
This article mainly introduces the relevant information of the JavaScript Object-Oriented Programming Tutorial. If you need it, you can refer to the definition of objects in JavaScript as a set of unordered attributes, its Attributes can contain basic values, objects, or fun
This article mainly introduces the basics of JavaScript object-oriented programming and is an important knowledge concept in JavaScript beginners. For more information, see
New Understanding of object-orientedTo demonstrate that
This article mainly introduces Javascript simple implementation of object-oriented programming inheritance instance code, and briefly analyzes the characteristics of object-oriented programmin
Re-understanding of object-orientedin order to illustrate that JavaScript is a thorough object-oriented language, it is necessary to start from the object-oriented concept to explore some of the
Object-Oriented ProgrammingECMA-262 defines an object as: "A collection of unordered attributes whose properties can contain basic values, objects, or functions." "Strictly speaking, this is equivalent to saying that the object is a set of values that do not have a particular order. Each property and method of an
Summarize the JS Object Oriented constructor and js object constructor Based on JavaScript advanced programming.Introduction:
In ECMAScript, there are no independent functions. All functions must be methods of an object. WhileA function is also an
, JavaScript does not have a specific syntax or implement inheritance and polymorphism at the language level. However, this does not prevent us from using these features. This is because JavaScript is a flexible language, and it is quite flexible enough that none of these things are provided, or, more precisely, things that are not clearly indicated, can be implemented and used! So, can you say that
Object with attributes and methods. This is what everyone has heard. Object-oriented features include closed, inherited, and polymorphism. Today, I want to summarize what I just learned. I just wrote down the tip of the iceberg and hope it can be improved.
I believe everyone is familiar with Object Inheritance. You can
Create two main forms of an object, create an object instance, and create objects literalObject contains properties and methodsData, attributes have four attributes that describe the behavior of the property, and they are:Whether the configurable (configurable) can be deleted or modified to be accessor propertiesWhether the Enumerable (enumeration) can be for-inWriteable (writable) ability to modify propert
Component-Based ASP programming 2-Paging object
In ASP, the most commonly used program segments are called by writing pages as functions. Many parameters need to be passed and written as objects to enable paging.
Object calling is simple. Based on the paging functions of many netizens, this article uses JavaScript to
This article mainly introduces a deep understanding of the JavaScript series (17): An Introduction to object-oriented programming, this article describes the introduction, paradigm and ideas, class-based features and prototype-based, static-based, and hierarchical inheritance. For more information, see
Introduction
In
Today, the content of the study is JS object-oriented programming, the following summary of all the content from Ruan Yi Feng Big blog, interested children can poke the original linkHttp://www.ruanyifeng.com/blog/2010/05/object-oriented_javascript_encapsulation.htmlTrue, easy to understand, at the same time the first q
This article mainly introduces js object-oriented programming. If you are interested, you can refer to this article because JavaScript is based on prototype and does not have the concept of classes (ES6 is available, this will not be discussed for the moment). We can access all objects and truly achieve that everything
JavaScript: Introduction to Object-Oriented ProgrammingIntroduction
In this article, we will consider various aspects of object-oriented programming in ECMAScript (although this topic has been discussed in many previous articles )
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