JavaScript

This article mainly introduces the differences between undefined and notdefined in javascript. If you need it, you can refer to the study and find that there is a big difference between the two, the differences between the two are as follows: Test

This article mainly introduces how Iframe automatically adapts to the page height. For more information, see The Code is as follows: Function SetCwinHeight (obj ){Var cwin = obj;If (document. getElementById ){If (cwin &&! Window. opera ){If

This article mainly introduces how to achieve the effect of a large image preview by swiping the mouse. For more information, see preview a large image when the mouse slides over the image, the text below the big picture will be introduced. The

This article mainly introduces the differences between display and visibility. If you need a friend, you can refer to the following: display can usually be set to none, inline, block Visibility can usually be set to hidden or visible. When display

To clarify the prototype chain, you must first understand the function type. In javascript, all classes are functions, so it is a functional programming language. To clarify the prototype chain, you must first understand the function type, in

$. Browser. version often has some inaccurate situations. Recently, I have made some summary and do not know whether to fully use it $. browser. version often has some inaccurate situations. Recently, I have made some summary and do not know whether

This article mainly introduces how to dynamically load js, css, and other files across iframe. For more information, see section 1. dynamically load js and css files (using native js and jquery) Iframe structure: Frame0 (parent) Frame2 (sub) Frame3

This article mainly introduces jQuery's simple example of setting and obtaining HTML, text, and value. If you need a friend, you can refer to it and hope to help you. The Code is as follows:

This article mainly introduces the sample code of jquery's unselect select drop-down box. If you need it, you can refer to it. I hope it will help you with three select drop-down boxes. Two classes are hidden in one category. When selecting a

This article describes how to use jquery to create a center mask layer. For more information, see The Code is as follows: Mask Drill

This article mainly introduces the simple examples of jQuery implementation drop-down box. If you need some help, please refer to them. To achieve this effect, select Add to right, add all to right, select Delete to left, and delete all to

Sometimes the content we update contains many large images, which may cause page deformation or fail to see the full picture. In general, we use the max-width Control of css, but some browsers do not support it. We can also use js to supplement it.

This article mainly introduces how to obtain and set attributes in js. If you need a friend, please refer to it and hope to help you. The Code is as follows: Function square (num ){Var total = num * num; // local variableReturn total;}Var total = 5

This article mainly introduces examples of jquery pentagram scoring plug-ins. For more information, see The Code is as follows: JQuery pentagram scoring plug-in

The clever use of get and set can directly operate on object attributes for reading and writing, which can greatly improve programming efficiency. The following is a good example. You can refer to the clever use of get and set, the ability to

There are many ways to dynamically Add a table to a webpage. This article describes how to use javascript to implement this code. // This code is tested in IE9, Firefox, Chorme, and safair to show that there is no problem, some simple styles are

This article mainly introduces the implementation of JQuery asynchronous loading of the infinite drop-down box cascade function. For more information, see The Code is as follows: /*JQuery asynchronously loads the infinite pole drop-down box

This article describes how to use the CSS style position: fixed for horizontal scrolling. If you need it, refer to the CSS style "position: fixed" to fix the p block in a fixed position, the position of a scroll bar is not changed. Position: fixed

This article mainly introduces the sample code for converting JavaScript values into three-digit comma-separated values. If you need it, you can refer to it for help. Instance code: The Code is as follows: Function formatNum (strNum ){ If

This article mainly introduces the implementation code of javascript back to the top. If you need it, you can refer to it and hope to help you. The Code is as follows: // Speed rolling speed time IntervalFunction gotoTop (speed, time ){ Speed =