framer prototype

1. How to accurately determine if a variable is an array type2. Write an example of a prototype chain inheritance3. Describe the process of a new object Knowledge Point ##### constructor function function Foo (name,age) { this.name=name this.age=age this.class= ' class-1 ' //return this // The default is this line}var f=new foo (' Zhangsan ',//var f1=new foo (' Lisi ', 22)//Create multiple objects　　 Constructors-

Use a prototype instance to specify the type of the object to be created, and copy the prototype to create a new object. 　　 2. Applicable scenarios The main idea of the prototype mode is to clone a new object based on an existing object. Generally, a clone method is provided for an object, through which a copy of the object is returned, this method of object crea

In JavaScript play inheritance (II), I used the prototype inheritance method to implement JavaScript inheritance. What is the mysteries of prototype. In this articleArticleI will discuss the prototype. Aside from JavaScript, Let's first look at the common object-oriented language we are familiar. Among the 23 design patterns, you will surely remember that there

Definition The prototype mode specifies the types of objects to be created, and creates new objects by copying these prototypes. The prototype mode allows an object to create another custom object without any details. Working principle: by passing a prototype object to the object to be created, the object to be created will be executed by requesting the

Design Patterns ----Prototype ( prototype ) Mode GoF : Specifies the type of object to create with a prototype instance, and creates a new object by copying the prototypes. Using Java Collections For example, ArrayList, HashMap, and so on must have had the experience of copy an object to another object, with the Clone () method probably used.

// The above code is equivalent to 3 var p1 = {}; 4 person.apply (P1, [' Mikej ']);The constructor pattern looks good, but one drawback is that it wastes memory, and then the example// falseTo avoid this flaw, but using prototype mode to create objects, each object in JS has a prototype attribute to point to another object, and all properties and methods of that object are inherited by the instance of the

Primary role in prototype mode Abstract prototype (Prototype) role: Declares a clone of its own interfaceSpecific prototype (concrete Prototype) role: Implementing a clone of its own operation When a class is mostly the same and only part of it is different, it's expensive

__PROTO__: This property is a property of an instance object, each of which has a __proto__ property that points to the prototype object (prototype) of the constructor that instantiates the instance.Proterty: This method is the property of the object. (it is said to be similar to an object's attr, such as in a DOM object)Prototype: Each constructor has a

PS One sentence: Eventually choose Csdn to organize the publication of the knowledge points of these years, the article parallel migration to CSDN. Because CSDN also support markdown grammar, Ah!OverviewTo understand prototype prototyping patterns, you must first understand shallow and deep replication in Java. In some places, replication is also called cloning. Java provides both of these cloning methods. Because the Clone () method is provided in Ja

Attached Source: http://hzjavaeyer.group.iteye.com/group/wiki/3086-JavaScript-core-conceptsFirst, the concept:Prototype object: A JavaScript object is a collection of properties and an implicit object: a Prototype object. The value of the prototype can be an object or null. In a generic engine implementation, the JS object contains several hidden properties, and the pro