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Summary of JS practical skills (blocking errors, div scroll bar settings, background image location, etc.)

This article describes practical JS techniques. Share it for your reference, as follows: js blocking errors put the following code in JS script <script type="text/javascript">window.onerror = function(){ alert("出现

2025-07-02
Nofollow tag writing and introduction to nofollow usage

Whether you are building external links for websites or exchanging friendly links, you will inevitably encounter a problem, that is, the nofollow tag. The literal meaning of Nofollow is not to track, it is an html tag value. The purpose is to tell search

2025-07-02
JavaScript operation Excel generates a report example

The code copy is as follows: <html><head><script language="javascript" type="text/javascript">function MakeExcel(){var i,j;try {var xls = ne

2025-07-02
JS gets the random number function to customize the minimum value maximum value

Copy the code as follows: /** * lowerValue Min value * upperValue Maximum value */ function selectFrom(lowerValue, upperValue){ //Total number of value ranges var choices = u

2025-07-02
Example of grouping concept and usage of javascript regular expressions

This article describes the grouping concept and usage of javascript regular expressions. Share it for your reference, the details are as follows: function matchDemo(){ var s; //The expression is divided into three groups: d(b+)(d), (b+), and (d) three gro

2025-07-02
Common methods for operating js arrays

In jquery, traversal is used more often in the case of processing JSON arrays, but it doesn't seem too much to use adding to remove these. Today I tried json[i].remove() and json.remove(i) and didn't work. I saw that the JSON data in the DOM objec

2025-07-02
Detailed explanation of the use of manifest cache in HTML5

This article mainly introduces the detailed explanation of the use of manifest cache in HTML5. The article also introduces some related automation tools. Friends who need it can refer to the web pages before the origin of HTML5. They are all connected wit

2025-07-02
The magical effect of mobile html5 meta tag

When making a mobile website, in addition to the concise page and easy operation, the Meta tag settings are set. The Meta tags are set reasonably set to optimize the search engine of the mobile website and the rendering and display of the mobile browser a

2025-07-02
Simple js picture rotation code (js picture carousel)

The code copy is as follows:

2025-07-02
JavaScript realizes the automatic positioning of click text to the drop-down box to select the operation

The examples in this article share with you the specific code selected by clicking the text of js to automatically locate it in the drop-down box for your reference. The specific content is as follows<html ><head runat="server"><title></title><style type=

2025-07-02
Don't underestimate HTML5! The app will be replaced by html5 within three years and completely disappeared

In the past few years, HTML5 has subverted the PC Internet landscape and optimized the mobile Internet experience. Next, HTML5 will subvert the native App world. In 2007, the W3C (World Wide Web Alliance) project was launched by HTML5. Until the end of Oc

2025-07-02
JS uses single linked list to count the number of English words

This article shares the implementation code for JS listing all words and their occurrences. JS counts the occurrences of English words. You can call the method of LinkedList class orderInsert() to store English strings in alphabetical order size order, an

2025-07-02
JavaScript code to realize image loop scrolling effect

1. Overview scrolling pictures can not only add dynamic effects of the web page, but also save page space and effectively ensure that more pictures are displayed on limited pages. 2. Technical key points mainly use the setTimeout() method to achieve the l

2025-07-02
Solution to the problem of setTimeout in javascript

I saw a problem, probably this is what it looks like. Copy the code as follows: name = 'out of you' foo = function(){ this.name = 'xxoo'; } foo.prototype.say = function(){ c

2025-07-02
In-depth analysis of JS array traversal method (recommended)

Friends who have used Underscore know that it has a very complete API to call the traversal of arrays (sets), and _.each() is one of them. Here is a simple example: var arr = [1, 2, 3, 4, 5];_.each(arr, function(

2025-07-02

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