JavaScript

1. Pre-compiling var variable JavaScript syntax is similar to C, Java, and C #, collectively known as Class C syntax. Students with C or Java programming experience should be familiar with the "declare first, then use" rules, if the use of

This article illustrates how JavaScript recognizes Web keywords and makes alphabet. Share to everyone for your reference, specific as follows: Here demo JavaScript Intelligent recognition page keyword and red display, I believe this effect is not

Small set is also just beginning to learn JavaScript, think that Taobao evaluation of the star effect is very good, so produced their own to write an idea, first to share the implementation of the results: I am enclosing the source code I wrote.

You should be familiar with the function of the ENTER key, for example, in many Windows applications, you can enter this program or turn on a function by clicking Enter, but sometimes we want to block its function, for example, when filling out a

Basically, all JS data types have both valueof and ToString methods, except NULL. Both of them solve the problem of JavaScript value operation and display. 1. The usage is as follows: ToString () Method: Returns a string representation of an

Wait for the control in the online search there are many kinds of, but are very complex, not necessarily use, and then my project is bootstrap reason, and dare not easily use a Third-party control, afraid of incompatible, so I wrote a waiting

Prototype, each function object has a display prototype attribute that represents the object's prototype (Function.prototype function object is an exception, no prototype attribute). __PROTO__: Each object has an internal hidden attribute named

This paper illustrates the simple implementation of JavaScript elastic motion effect. Share to everyone for your reference, specific as follows: Principle of elastic motion: acceleration Movement + deceleration movement + friction motion The

JavaScript regular-expression learning: There is a regular tool for online debugging. All of the following sample code can be found on the Codepen. 1. Creating Regular Expressions var re =/ab+c/; Way one regular expression literal

This article only discusses this question, after reading this article, if the reader can correctly answer the What ' s This question in JavaScript, as the author, I may feel that spends so much effort, writes such an article is worth. Let's

In Taobao, Jingdong and other web pages we can see, when the mouse moved up, can make it appear below other options, now demonstrate this functionThe main is to use the display inside the CSS, as well as the mouse triggered events onmouseover (),

Web sites generally have access statistics tools, more efficient and practical tools are diverse, and very accurate. Practical JavaScript can also be simple to implement this function, although not commonly used on the network of precision, but did

JavaScript functions can be invoked with any number of arguments without specifying a few parameters when the function is defined. Because a function is weakly typed, there is no way to declare the type of argument it expects, and it is legal to

Have you ever seen a code like this: a=a| | ""; Perhaps JavaScript beginners will be confused about this. Today I would like to share some of my experience.In fact: a=a| | " DefaultValue "; a=a| | " DefaultValue "; And: if

One, what is closure? The official explanation is that a closure is an expression (usually a function) that has many variables and an environment that binds them, and therefore these variables are also part of the expression.I believe very few

Web sites generally have access statistics tools, the more efficient and practical tools are diverse and very accurate. Practical JavaScript can also be simple to implement this function, although not commonly used on the network of precision, but

A very simple use: Click on the menu to be able to display the following or not display.1, the main purpose: the show is a menu item, and then click, Hide, point, pop-up the following content Using the Overflow:hidden and overflow= "visible"

 js's core ECMAScript the Process Control statements and other programming languages are quite similar. Let's take a few practical examples to see these statements. The order structure we are not talking about here, directly say conditions and

Comparing the size of the values in the array is a more common operation, there are several ways to compare the size, such as using the own sort () function, the following methods are described below, the following code: Method One: Minimum

Many websites have this function, when browsing to the bottom will have a printing button, click the Print button can complete the printing function, the function is very good, user-friendly, the code is very simple. That is, just