object oriented javascript interview questions

NEW: string equality comparisons in JavaScript The application of the image object is quite extensive, it appears in the desktop programming very early, the application is more mature, like c++,java,c# etc. And in the Web programming this piece, appear much later, so that the current web development is difficult, of course, there are many technologies involved in web development reasons. In recent years,

ObjectiveToday's JavaScript is a great way to rely on a wide range of applications. Web programmers have become accustomed to using a variety of excellent JavaScript frameworks to quickly develop WEB applications, ignoring the learning and deep understanding of native JavaScript. So, often the case is that many of the programmers who have done it for many years a

This article mainly introduces the advanced features of javascript object-oriented programming, and detailed the creation, access, deletion, object type, extension, and so on of javascript objects in the form of examples, for more information about the advanced features of

() {Alert"Hi! I am "+ This. name); }varPerson1 =NewCreateperson (' ZS ',' Boy ',' 2001-02-03 ');varPerson2 =NewCreateperson (' ls ',' Boy ',' 2001-02-04 '); Person1.sayhi ();//outputs "Hi! I am ZS "Person2.sayhi ();//outputs "Hi! I am LS "In general, an object or class is more than one method and requires multiple methods to work with it.CreatePerson.prototype={ sayHi:function() { alert("Hi ! I am "+this.name); }, walk:function() {

SpecialArray ("red", "blue", "green"); alert (colors. toPipedString (); // "red | blue | green" [9] Secure constructor mode: the so-called secure object indicates that there is no public attribute, and its method does not reference this object. Secure objects are best suited to some security environments (this and new are not allowed in these environments) or to prevent data from being changed by other app

This article mainly introduces whether javascript is an object-oriented language. For more information, see 2. Some comments say that javascript is not really object-oriented because it cannot provide information hiding. That is,

default value of undefined. Javascript never sets a value to null. That must be done programmatically. 5. How do you change the style/class on any element? Document. getelementbyid ("mytext"). style. fontsize = "20 ″;-Or-Document. getelementbyid ("mytext"). classname = "anyclass "; 6. What are Javascript closures? When wocould you use them? Two one sentence summaries: * A closure is the local va

This article mainly introduces nine ways to create objects to help you better learn javascript object-oriented, interested friends can refer to this article to share nine ways to create javascript objects for your reference. The specific content is as follows: [1] constructing functions using objects[Disadvantage] usi

Article Introduction: JavaScript is object-oriented, and all objects have a prototype chain of their own. object and function may look at the object instanceof function, the function instanceof object are all true, so first look a

The advanced realm of learning JavaScript is to use object-oriented methods to call JavaScript. A new article: Comparison of strings in JavaScript The Application of face object is quite extensive. It has long been used in desktop

According to the title, this blog article introduces this small example. The following blog summarizes JS Object-Oriented Knowledge. The purpose of this small example is to understand JS Object-Oriented Knowledge. Take an example and try it. Then compare it with the system summary. This piece of knowledge is not very

This article mainly introduces two methods for accessing the object attributes of javascript object-oriented. The example shows how to directly access the object attributes and how to access the array, for more information about how to access

From a language perspective, object-oriented programming and object-oriented JavaScript are definitely not modern things; JavaScript has been fully designed as an object-

constructor, and by initializing the prototype in the constructor (only if necessary), while preserving the advantages of using both constructors and prototypes. In other words, you can determine whether a prototype needs to be initialized by checking that a method that should exist is valid.Parasitic constructor modeIf the above methods are not applicable, parasitic patterns can be applied. The core idea of this pattern is to create a function that simply encapsulates the code that creates the

Summarize the JS Object Oriented constructor and js object constructor Based on JavaScript advanced programming.Introduction: In ECMAScript, there are no independent functions. All functions must be methods of an object. WhileA function is also an

The inheritance of classes in JavaScript can refer to Nanyi's blog, "The design idea of JavaScript inheritance mechanism", which is very well said. First, the problems encountered in JavaScript instantiation: Here's a description of the example in the JavaScript Advanced program, which is an instance of the

This article analyzes two ways of JavaScript object-oriented access to object properties. Share to everyone for your reference. Specifically as follows: JavaScript Object-oriented acce

This article mainly introduces JavaScript object-oriented and prototype. For more information, see ECMAScript. There are two development modes: 1. functional (procedural); 2. object-oriented (OOP ); 1. create an object1. common object