Several ways to create JavaScript objects

1 /**2 * Created by 2016/6/4.3  */4 functionBox () {5     varobj =Newobj ();6Obj.name = "Lee";7Obj.run =function(){8         return  This. name+ "Run";9     };Ten     returnobj; One } A varB =Box (); - //The Factory mode creation object creates obj in the object and returns the Obj object at the end -  the  -  - functionBox () { -      This. Name = "Lee"; +      This. Run =function(){ -         return  This. name+ "Run"; +     }; A } at varB =NewBox (); - //constructor mode using the new operator to create an object -  -  -  - functionBox () {}; inBox.prototype.name = "Lee"; -Box.prototype.run =function(){ to     return  This. name+ "Run"; + }; -  the varB =NewBox (); * //prototype mode creation, prototype as the prototype attribute.  $ //Pros: Method sharing, Cons: attribute sharingPanax Notoginseng  -  the  + functionBox () {}; ABox.prototype = { theConstructor:box,//force point to box prototype, otherwise point to object +Name: "Lee", -Runfunction(){ $         return  This. name+ "Run"; $     } - }; - varB =NewBox (); the //prototype mode, created in literal form. The literal cannot be overridden here, causing the previous connection to break - //Cons: Cannot pass parameters, all properties are sharedWuyi  the  -  Wu functionBox () { -      This. Name = "Lee"; AboutBox.prototype.run =function(){ $         return  This. name+ "Run"; -     }; - }; - varB =NewBox (); A //prototype + constructor pattern creation, where the run of each instance is initialized once, so you can use dynamic prototypes + constructs + //function Mode the  - functionBox () { $      This. Name = "Lee"; the     if(typeofBox.prototype.run! = "function"){ theBox.prototype.run =function(){ the             return  This. name+ "Run"; the         }; -     } in  the }; the varDNewBox (); About  the //dynamically created. The run will only be initialized once, and the method is shared, saving memory the  the //There are many ways to create objects, and it is better to create them using the dynamic prototype + constructor pattern.  + //instance properties are independent and method-shared. 

There are a few more to add tomorrow ~

Several ways to create JavaScript objects