This article mainly introduces a simple example of implementing the TAB switch Effect of js (JavaScript). If you need it, you can refer to it and hope to help you with JavaScript) the tab Label Switching code of, can automatically adapt to the width, you can add and delete the label block yourself, you can complete the silly operation!
The Code is as follows:
19991224/loose. dtd ">
Adaptive width labe
Document directory
Instance 1
Instance 2
Syntax:
Instance
Syntax:
Instance:
The Condition Statement in Javascript is used to complete the action under different conditions.Instance
If statement
How to compile an if statement.
If... else statement
How to compile the IF... else statement.
If. Else if... else statement
How to compile the IF... else if... else statement
Random Link
This exam
This article mainly introduces how to increase the loading speed of javascript. write output js solves the problem of slow ad loading speed. If you need it, you can refer to it. Generally, some js Code will be loaded on our website, such as statistics, google ads, Baidu alliance, alimama advertising code,
The page loading speed was slow and slow.
Solution: Use a js inclusion method to increase the loading speed of
When JavaScript is used on pages, where should these JS code be placed? Next, let's learn how to use JavaScript on the page. where should these JS code be put? Let's take a look.
Generally, there are two ways to write on the interface and use. js files.
1.1 Head part on the interface
You can directly put it in the head label, as shown in the following code:
TestPage
Some of the features of JavaScript bring much more trouble than they do.
Chapter 2 Essence
Some of the features of JavaScript bring much more trouble than they do. Some of these features may cause portability problems due to imperfect specifications. Some features may generate codes that are hard to understand and modify; some features make my code style too complex and error-prone; others are design error
Use CoffeeScrip to write javascript code and javascript code in a elegant way
JavaScript is undoubtedly one of the greatest web inventions. Almost all the dynamic effects of web pages are based on its rich computing capabilities. Moreover, its capabilities are becoming increasingly powerful under various new JavaScript
You can create three message boxes in javascript: Warning box, confirmation box, and prompt box.Instance
Warning box
Warning box with lines
Confirmation box
Prompt box
Warning box
The warning box is often used to ensure that users can obtain certain information.
When a warning box appears, you must click OK to continue the operation.Syntax:
Alert ("text ")Confirmation box
The confirmation box enab
Document directory
1:
2:
An array object uses a separate variable name to store a series of values.Instance
Create an array
Create an array, assign values to it, and then output these values.
For... in statement
Use the for... in Declaration to cyclically output the elements in the array.
Merge two Arrays-Concat ()
How to Use the Concat () method to merge two arrays.
Using array elements to form a string-join ()
How to Use the join ()
The string object is used to process existing character blocks.
Javascript string object instance
Calculate the length of a string
How to Use the Length attribute to calculate the length of a string.
Add a style to a string
How to add a style to a string.
Indexof () method
How to Use indexof () to locate the first occurrence of a specified character in a string.
Mat
JavaScript-the most misunderstood language analysis JavaScript in the world is one of the world's most popular programming languages.
. In fact, every personal computer in the world is installed and at least one Jav is frequently used.
AScript interpreter. The popularity of JavaScript is entirely due to his
The position in the WWW scripting language field is dete
This article mainly introduces the JavaScript Memory optimization, mainly because javascript applications are getting more and more complex, and memory problems such as choppy and memory overflow become no stranger, so we also talk about memory optimization, for more information, see C/C ++. The processing of JavaScript in memory has made us pay more attention to
The setTimeout and setInterval of JavaScript are two methods that can easily fool others' feelings, because we often start to think that the call will be executed in the established way. I think many people share the same feeling. For example
The Code is as follows:
SetTimeout (function (){Alert ('Hello! ');}, 0 );SetInterval (callbackfunctions, 100 );
It is assumed that the greeting method in setTimeout will be executed immediately, because it is
1. What is JavaScript?
Javascript is a scripting language based on object and event-driven with secure performance. It is used to link multiple objects on a web page with HTML hypertext markup language and Java scripting language (Java applet) to interact with Web customers, this allows you to develop client applications. It is implemented through embedding or calling in a standard HTML language. Its appea
Article Introduction: finally undefined thank you for reading this article! Sincerely hope it will help you become a JavaScript enthusiast. If you are already familiar with JavaScript, you can recommend any other relevant resources in the comments.
It's a terrible thing to learn something new. For me, the biggest problem with mastering a new skill is that I don't know what I understand. In view o
Summary of little knowledge about JavaScript performance optimization, and javascript Performance Optimization
With the development of the network, network speed and machine speed, more and more websites use a variety of client technologies. Ajax is currently the most popular method. JavaScript is an interpreted language, so it cannot reach the level of C/Java, w
This article lists the 16 most popular JavaScript frameworks, including jQuery and Mootools, and Zepo, a mobile JavaScript framework that supports the touch function of smart phones, if you have better framework recommendations, please share them with us. 1. jQuery-Javascript Framework
JQuery is the most popular JavaScript
When I read the jQuery source code, I often think that those factors will make me unable to read the code. Which of the most critical factors is the earliest thought of as the architectural design of jQuery, when I finally found the jQuery architectural design portal, I found that the skillful use of the basic javascript syntax is the reference for reading the source code... syntaxHighlighter. all ();
When I read the jQuery source code, I often think
Complete Javascript development kit
Prototype
Prototype is a JavaScript framework that aims to publish development of dynamic web applications.
Homepage: http://prototype.conio.net
Documentation:Http://blogs.ebusiness-apps.com/jordan/pages/Prototype%20Library%20Info.htmHttp://www.sergiopereira.com/articles/prototype.js.htmlHttp://wiki.script.aculo.us/scriptaculous/show/Prototype
Rico Rico provides a very
Personal Summary:A JavaScript engine is implemented by a standard interpreter, or by an instant compiler.Interpreter (interpreter): interprets one line and executes one line.Compiler (Compiler): all compiled into machine code, unified execution. (reduces the overhead of switching and scheduling, faster.) )The V8 engine is an instant compiler.Optimization strategy for V8 engine:1. Inline: Replace the expert code called by the function with the called f
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