wireframe prototype

In-depth analysis on prototype of ctipt PT: Is prototype attributes a copy, a reference, or a fixed search method? ---- 03 _ add the Same Name attribute of prototype to the instance // // Output: After the instance is created, person. Username: zhangsanAfter adding an attribute with the same name as prototype to

First, overview:Use the prototype instance to specify the kind of objects that are created, and create new objects by copying those prototypes. Simply put, a copy of the object creates a new object (the clone of the object), and the prototype pattern is an object-creation pattern .Second, the use of the scene:Creating a new object can be obtained by copying an existing object and, if it is a similar object,

() {} // function Expression var function // trueconsole.log (man.__proto__ = = = Function.prototype) // TrueWhat does that mean?All constructors come from Function.prototype, even the root constructor object and the function itself. All constructors inherit the properties and methods of the Function.prototype. such as length, call, apply, bind (ES5).Function.prototype is also the only prototype that typeof Xxx.prototype as "function". The

Copy Code code as follows: var people={name: "Xiong", age:15}; var person=function (user,age) { This.name=user; This.age=age; This.say=function () {alert ("I am" +this.name+ "\ n" +this.age);} //} var chairman=function (name,salary) { Person.call (This,name); //} var bill=new person ("Bill", 15); var hu=new chairman ("Hu Jintao"); Person.prototype.eat=function () { Alert ("I ' m eating"); //} Bill.eat (); function person (name)//base class constructor { THIS.name = name; }

The concept of prototype in JavaScript aptly reflects the meaning of the word, and we cannot interpret it as a prototype concept of C + +. All of the function-type objects of JavaScript have a prototype attribute. The prototype property itself is an object type, so we can also add arbitrary properties and methods to th

Let's talk about javascript prototype inheritance and javascript prototype inheritance. In the real sense, Javascript is not an object-oriented language and does not provide traditional inheritance methods, but it provides a prototype inheritance method, use the prototype Attributes provided by Alibaba Cloud to impleme

Each function created in JavaScript has a prototype (prototype) attribute, which is a pointer to an object that is used to contain properties and methods that can be shared by all instances of a particular type. If the literal meaning is understood, then prototype is the prototype object of the object instance created

In JavaScript, inheritance is a wonderful way to implement interface inheritance, and can only rely on prototype inheritance. Prototype chaina prototype is an object, and an instance created through a constructor has a pointer to the prototype's properties and methods. In this way, the instance object takes the property method of the constructor and the property

In-depth analysis on prototype of ctictipt:Is prototype attributes a copy, a reference, or a fixed search method? // What is the prototype principle of javasctipt? When an instance is created, it copies the prototype, obtains a copy of the prototype attribute, or enables th

//https://xxxgitone.github.io/2017/06/10/JavaScript%E5%88%9B%E5%BB%BA%E5%AF%B9%E8%B1%A1%E7%9A%84%E4%B8%83%E7 %a7%8d%e6%96%b9%e5%bc%8f/Source functionPerson () {} Person.prototype.name= ' Jiang ';//adding properties and methods to an object varPerson1 =NewPerson (); varPerson2 =NewPerson (); Console.log (Person1.name)//JiangConsole.log (Person2.name)//Jiang //Console.log (object.getprototypeof (Person1));//Output specified object prototyp