JS determines the browser type and version

Judging the browser type in JS is probably a problem that every developer who edited the page has encountered. Among many browser products, IE, Firefox, Opera, Safari ........ many brands have different standards. Therefore, you often need to

JS event object, simple description

Event indicates the Event status, such as the Event element, keyboard status, mouse position, and mouse button status. Once an Event occurs, an event object is generated. If you click a button, the corresponding Event object is generated in the

Five bad performances of leaking your JavaScript technology

Javascript has a bad reputation on the Internet, but it is hard for you to find another language that is so dynamic, so widely used, and so rooted in our lives. Its low learning threshold makes many people refer to it as a pre-school scripting

Js mouse events

Description supported by event ExplorerOnClick IE3 | N2 | O3 mouse click event. You can click the event within the control range of an object.OnDblClick IE4 | N4 | O double-click eventOnMouseDown IE4 | N4 | O the button on the mouse is

Record of 'seckill, groupbuy 'countdown display in javascript

 Recently, I made a flash sale for a real estate. The e-commerce website for group purchases (there are also flash sales in the House) has a countdown to flash sales, it mainly determines how long the current time is from the start of the second

Conversion of Data Types in javascript

The conversion rules for converting to a Boolean value in javascript are as follows:1. The special values undefined and null are changed to false.2. The numbers 0 and NaN change to false.3. Convert the null string to false.4. All other values are

How long does this js Code save you?

  1. application case: Var Mouse = function (){ // Look! No that = this! This. position = [0, 0]; If (document. addEventListener ){ Document. addEventListener ('mousemove ',?); // This. move? } Else if (document. attachEvent ){ Document.

Firefox BUG: An error occurred while rendering the background image of the background-image when the page is too large.

A simple page is as follows:     A huge page that defines the background image. In Firefox, drag the horizontal scroll bar to the very right, or drag the vertical scroll bar to the very bottom, and you will find that the background image is

Over 20 lines of js Code to write a simple 3x3 puzzle game

  By convention, it is required: Gameplay: direction keys Winning or losing: 12345678 _ out of order, even if it is successful! Compatible with various browsers and uses reverse order and judgment to ensure certain solutions. The next step is the

Learn JavaScript notes (5)

Previous: http://www.bkjia.com/kf/201112/115493.htmlJavaScript Regular -- RegExp:RegExp has a test () method. If a given string (with only one parameter) matches this mode, it returns true. Otherwise, it returns false.Differences and meanings

Js converts the color value rgb to hexadecimal

When javascript uses dom to obtain the color values of backgroundColor and other styles, it obtains an rgb format value, such as rgb (, 12 ).The following is a conversion function I wrote:[Javascript]Function RGBToHex (rgb ){Var regexp =/^ rgb/([0-9]

In-depth understanding of the JavaScript series (7): Open and Close principles of the five principles S.O.L. I. D. OCP

PrefaceIn this chapter, we will explain part 1 of The Five Principles of S.O.L. I. D: Implementation of The JavaScript language, and The Principle of Open and Closed OCP (The Open/Closed Principle ).The opening/closing principle is described as

Nivo Slider.

Nivo Slider is an outstanding jQuery slide plug-in that supports multiple switching effects and is customizable. This is the official website: http://nivo.dev7studios.com/ However, I did not find any corresponding documentation. So I simply sorted

Fully parse the Module mode using javaScript

IntroductionThe Module mode is a very common mode in JavaScript programming. Generally, everyone knows the basic usage. This article attempts to give you more advanced usage of this mode.First, let's take a look at the basic features of the Module

Operations related to writing txt files and js arrays in js

1. js: The simplest DEMO: Var fso = new ActiveXObject ("Scripting. FileSystemObject ");Var f = fso. CreateTextFile ("shorttop.txt", true );Var f2 = fso. CreateTextFile ("topics top2.txt", true );Var f3 = fso. CreateTextFile ("comment top3.txt", true

Javascript ID card number verification function supports x

// -- ID card number verification-new x ID card supportedFunction isIdCardNo (num){Var factorArr = new Array );Var error;Var varArray = new Array ();Var intValue;Var lngProduct = 0;Var intCheckDigit;Var intStrLen = num. length;Var idNumber = num;//

Five Reasons for your poor Javascript technology

Javascript has a bad reputation on the Internet, but it is hard for you to find another language that is so dynamic, so widely used, and so rooted in our lives. Its low learning threshold makes many people refer to it as a pre-school scripting

What is the role of this JS?

Recently I have seen several Flash websites, and a swfobject. js is loaded in the head code. What is the role of this JS? A Web page is being created, which may be useful. So I searched it out curiously. It was originally developed by a foreigner

10 confusing things about JavaScript

JavaScript is the most popular programming language in the world. It has been labeled as a nightmare by Web developers. Although the real nightmare is actually dom api, A large number of developers and designers have paid more and more attention to

SeaJS of JavaScript modular Development Library

SeaJS of JavaScript modular Development LibrarySeaJS is developed by lifesinger, a Chinese cool. The current version is 1.1.1, with less than 1500 lines of source code, and only 4 kb after compression, with extremely high quality.This article will

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