The Console.log () function in JavaScript describes _javascript techniques in detail

For debugging JavaScript programs, using Console.log () is a better approach than alert () because the alert () function blocks the execution of JavaScript programs, causing side effects; Console.log () The information is printed only in the console,

Introduction to the factory method model of JavaScript design pattern _javascript Skills

1. Simple Factory model Description: Create a factory class that implements the creation of the implementation class for the same interface. But it seems like JavaScript doesn't have an interface, so we remove the interface layer; Of course, the

Delve into JavaScript timer _javascript tips

JavaScript single Thread A single thread of JavaScript, which is related to its purpose. As a browser scripting language, the main purpose of JavaScript is to interact with the user and manipulate the DOM. This determines that it can only be single-

Null and undefined differences in JavaScript introduction to _javascript Tips

There are 2 special values in JavaScript that represent information that does not exist: null and undefined. The individual believes that the difference between these two special values can be understood from the following perspectives: 1.null

JavaScript document.forms[0] and getelementbyname distinguish _javascript skills

First, let's look at an example: Copy Code code as follows: testtest testtest testtest Document.forms[0] When you have a form form or multiple form forms in an HTML page, you return a form array of nodelist

Three ways and examples to implement inheritance in JavaScript _javascript tips

Although JavaScript is an object-oriented language, its inheritance mechanism is different from the traditional object-oriented language in the first design, and is based on the prototype inheritance mechanism, but under this mechanism, inheritance

Introduction to primitive object encapsulation in JavaScript _javascript tips

In JavaScript, string, number, and Boolean are primitive basic types, and the string, numeric, and Boolean values do not exist in the form of objects. However, because the three primitive type values need to be manipulated, JavaScript automatically

_javascript techniques for single mode sharing in JavaScript

As a software development model, monomer mode has been widely used in many object-oriented languages, and the monomer mode is widely used in JavaScript, but because JavaScript language has its own unique object-oriented way, It is consistent with

JavaScript implementation get Browser version, OS type _javascript tips

The code is very concise, functional very practical, here is not much nonsense, directly to the code: /** * Created by the Administrator on 15-1-12. */function Broswerutil () {} Broswerutil = {//Detect browser version

The method of _javascript between JavaScript component focus and page Anchor point technique

The example in this article describes the method for the value of JavaScript component focus and page anchor. Share to everyone for your reference. The specific analysis is as follows: These two small features are useful in some of the newer mobile

JavaScript DOM Programming Art The JavaScript grammar _javascript skills of reading notes

CommentsSingle-line Comment:// Multi-line Comment:/*/ "" Multi-line comments, so this annotation method is not recommended VariableIn a JavaScript language, the names of variables and other syntactic elements are case-sensitive. The variable

Array operations in JavaScript introduction to _javascript techniques

The array objects in JavaScript come with methods that you can use to manipulate the arrays. Join () You can use the join () method to merge members from an array into a string: Copy Code code as follows: var o = [1,2,3];

JavaScript gets a random number of four digits or letters _javascript tips

This section describes how to implement a simple four-bit random number function by using a code example.A simpler way to do this is to randomly extract four characters from numbers and letters. The code example is as follows: function only

How JavaScript dynamically creates and deletes elements _javascript tips

The examples in this article describe how JavaScript dynamically creates and deletes elements. Share to everyone for your reference. The specific analysis is as follows: We can quickly and easily delete and delete DOM elements in the DOM, here we

A method for JavaScript batch modification of file encoding format _javascript tips

The examples in this article describe the ways in which JavaScript bulk modifies file encoding formats. Share to everyone for your reference. Specifically as follows: Summary: Recently in the production of a manual encountered a problem ' document

Self-encapsulated common JavaScript functions share _javascript Tips

Are some commonly used functions, there is no more nonsense, small partners to see their own understanding The code: Copy Code code as follows: Cookies function Setcookie (name, value, Iday) { if (Iday!==false) { var odate=new

The idea of realizing dependency injection in JavaScript sharing _javascript skills

Today, the frameworks are modular, and even the front-end JavaScript is no exception. Each module is responsible for a certain function, modules and modules are interdependent, then the question is: JavaScript how to implement dependency injection? (

Methods of class and instance implementation in JavaScript _javascript techniques

This article illustrates the class and instance implementation methods in JavaScript. Share to everyone for your reference. Specifically as follows: JavaScript does not have a parent class, the concept of subclasses, there is no class and instance

JavaScript's declaration of function objects _javascript tips

The reason for writing:   When you use JS to write functions at ordinary times, it is common to declare a function in the manner of the customary function fn () {}, and when reading some excellent plug-ins, it is unavoidable to see the creation of

JavaScript _javascript tips for removing whitespace from the left and right ends of a string

Remove the space between the left and right sides of the string, you can easily use trim, LTrim, or RTrim in VBScript, but in JS there are no 3 built-in methods that need to be written manually. The following implementation method uses regular

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