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Analysis on inherited usage of constructors in js encapsulation, and js Constructor The example in this article describes the inheritance usage of constructors that can be used in js encapsulation. Share it with you for your reference. The details are as follows: Let's take a look at the following code. (YUI) library method:Copy codeThe Code is as follows: function extend (Child, Parent ){ Var F = function (){};F. prototype = Parent. prototype;Child. prototype = new F ();Child. prototype. constr

JavaScript Object-Oriented Programming-object copy for quickly building inheritance relationshipsIn the preceding example, we create an object through the constructor and want the object to inherit from another constructor. We can also directly target an object to achieve the purpose of inheritance, using the following steps: 1. Copy an object. 2. Add attributes to the new object. /*** Copy the attributes and behavior of the inherited Object * @ param {Object} p parent Object */function extendCo

(); Cat.prototype.constructor = Cat; F is an empty object, so it hardly accounts for memory. At this point, modifying the cat's prototype object does not affect the animal prototype object. alert (Animal.prototype.constructor); Animal We encapsulate the above method into a function that is easy to use. function extend (child, Parent) {var F = function () {}; F.prototype = Parent.prototype; Child.prototype = new F (); Child.prototype.constructor = chil

intermediary. var F = function () {}; F.prototype = Animal.prototype; Cat.prototype = new F (); Cat.prototype.constructor = Cat; F is an empty object, so it hardly accounts for memory. At this point, modifying the cat's prototype object does not affect the animal prototype object. alert (Animal.prototype.constructor); Animal We encapsulate the above method into a function that is easy to use. function extend (child, Parent)

to the same object, so any changes to the Cat.prototype will be reflected in the Animal.prototype.So this sentence Cat.prototype.constructor = Cat; actually the constructor attribute of the Animal.prototype object is also changed! alert (Animal.prototype.constructor);//Cat Iv. use of empty objects as intermediariesPlease Look at the following code:　　 var F = function () {}; = Animal.prototype; New F (); F is an empty object, so it hardly accounts for memory. At this point,

accounts for memory. At this point, modifying the cat's prototype object does not affect the animal prototype object.// Animal We encapsulate the above method into a function.function Extend (Child, Parent) { varfunction() {}; = Parent.prototype; New F (); = Child ; = Parent.prototype;} Extend (cat,animal); var New Cat ("Da Mao", "Yellow"// animal This extend function, is how Yui Library implements the method of inheriting. In addition, it is stated thatChild.uber = Parent

;It means setting an Uber property for the sub-object, which points directly to the parent object's prototype property. (Uber is a German word that means "up", "up".) This is equivalent to opening a channel on a child object that can call the parent object's method directly. This line is put here, just to achieve the completeness of inheritance, is purely an alternative nature.V. Copy inheritanceImplement i

(); Cat.prototype.constructor = Cat; F is an empty object, so it hardly accounts for memory. At this point, modifying the cat's prototype object does not affect the animal prototype object. alert (Animal.prototype.constructor); Animal We encapsulate the above method into a function that is easy to use. function extend (child, Parent) {var F = function () {}; F.prototype = Parent.prototype; Child.prototype = new F (); Child.prototype.constructor = chil

Spring-boot-start-dubboSpring-boot-start-dubbo allows you to develop Dubbo programs in a Spring-boot way. Makes Dubbo development so simple.How to use 1. Clone code (optional, has been published to the central warehouse, can directly rely on a stable version of the Central warehouse)git clone [emailprotected]:teaey/spring-boot-starter-dubbo.git2. Compile and install (optional)cd spring-boot-starter-dubbomvn clean install3. Modify MAVEN configuration file (refer to sample Spring-boot-starter-dubb

important and appropriate content to use on mobile devices from all available features is the first step in the design process. 　　2. Simplifying As a handheld device that accompanies the user anytime, anywhere, it takes up a lot of the user's time, but the time is fragmented, a few minutes long, and a short glimpse of time. How to let users get the information he wants in such a short time is a problem that almost all mobile applications need to consider. Starting from a single function to d

the constructor attribute of the Animal.prototype object too! // Cat Iv. use of empty objects as intermediariesSince the "Direct inheritance prototype" has the disadvantages mentioned above, there is a fourth method, using an empty object as the intermediary.var F = function () {}; F.prototype = Animal.prototype; Cat.prototype = new F (); Cat.prototype.constructor = Cat;　　f is an empty object, so it hardly accounts for memory. At this point, modifying the cat's prototype object does not affect

ASP objectsAn object is a kind of encapsulation of multiple methods (just like their functions) and variables in an easily managed Uber variable (object). The ASP object is similar to other object-oriented programming languages. In this lesson, we will use the ASP CDO. The message object is dissected as our example object.ASP objectsObjects are built to deal with increasingly complex programming. Reason to understand and use object programming in is m