object oriented javascript interview questions

The factory mode and constructor mode are introduced in javaScript object-oriented design and Javascript object-oriented design, as well as their advantages and disadvantages, today, we will continue to explain the prototype mode.

This section describes several key words about object-oriented: encapsulation, inheritance, and polymorphism. It expands JavaScript object-oriented key words about object-oriented: enca

This section describes the private and public members of JavaScript. Although JavaScript does not have private and public keywords, it is still the same sentence-as developers, we need to have an object-oriented idea! The last two sections talk about the JavaScript

people who pass technical interviews are much more likely to be excellent programmers than those who cannot pass technical interviews. Finally, I would like to say that I will not pass them out because the applicant answered three or two wrong questions or did not answer them as expected. However, if the other party cannot answer most of the questions, I will give him a red light! The following seven

a desire to greet the creator of the code. Yes, the third function directly triggers my decision to use object oriented. In fact, I can completely transform the third function into the following. Copy Code code as follows: function append (obj) { var a=document.craeteelement ("a"); a.title= "Hello"; a.href= "javascript:void (0);"; A.innerhtml=a.title; A.click=function () {create

The full use of object-oriented design in JS can greatly improve code reuse, reduce the coupling between modules, better logical layering and parallel development. Here are a few steps to simply talk about my understanding. data type and Packing classPacking class ... Type name ... Common values ... Classification Number ... number ...... 123.123. ... Basic data types Boolean ... Boolean ... true, false

calling o. method (), we can see that the method defined on the parent class prototype will not inherit from the quilt class. By calling o. method3 (), we can see that the instance methods defined in the subclass cannot access the private instance members defined in the parent class. Finally, we can see from the results of the call to subClass. staticMethod () that static members will not be inherited. Finally, this example does not show that multiple inheritance can be implemented by calling t

private method. 3. The genuine privatization of members through closures. For friends who are unfamiliar with scopes and nested functions in the concept of closures, you can refer to the article "One of the object-oriented JavaScript (beginner JavaScript)", which is not discussed in detail here. Copy Code code

prototype methods are added to the sub-class.Instance1.colors.push (' black '); Console.log (instance1.colors); // [' Red ', ' blue ', ' green ', ' black '] // [' Red ', ' blue ', ' green ']instance1.getname (); // CSSbook instance2.gettime (); // -Note: A subclass that wants to add a prototype method must pass a prototype object, one way to add it through the form of a point syntax, or it will be directly assigned to an

To create an object with the new object () There are several ways to create objects in JavaScript, and different methods can be used on different occasions. The simplest is to use the new operator, for example: Copy Code code as follows: We defined the object of person in this example, and then adde

Because most of the project JAVASCRIPT,CSS client work is another colleague in charge, the colleague and special busy can not be reconstructed, the boss also just make suggestions did not immediately implement refactoring. But I've also changed a little bit of client bugs in the last few days, it is true that the code is a little foggy, I do not know which mountain, easy to move code, so I started to tinker with the love and hate of

a behavior, once the behavior changes, there is no need to modify many classes, just modify this behavior. AOP is this decentralized programming approach that encapsulates "focus" in "facets"2) control reversal IOC (inversion of control) controls refers to dependencies between program-related classes. In traditional conceptual design, it is usually the caller who creates an instance of the callee, in Spring, the work of creating the callee is no longer done by the caller, but by the The Spring

Because of talents, I had to extract some of the content from the Javascript Advanced Program, which was also my reading notes. Because of the Javascript object-oriented mechanism and its importance, and the content is very numerous, here on the chapter by section. The object