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JS achieves the precise countdown effect of seconds

The examples in this article share two countdown effects for your reference. The specific content is as follows: 1. Countdown effects<!DOCTYPE html><html><head><meta charset="utf-8"/><title> Countdown</title>

2025-08-06
Simple example of JavaScript combat (native range and custom effects)

Today I have coded two more special effects: one is made with native input[type=range], and the other is completely customized; the following is the complete code and demonstration:<!DOCTYPE html><html lang="en"><head><meta charset="UTF-8">

2025-08-06
Javascript imitation PHP $_GET to get parameters in URL

Copy the code code as follows:/* Get the address bar GET parameter like PHP's $_GET['arg'] */function getArgs() {var args = {};var query = location.search.substring(1)

2025-08-06
Experience summary of BootStrap Metronic Development Framework [9] Implementing the printing preview and saving of web page content

This article mainly introduces the relevant knowledge on how to implement the printing preview and saving of web page content. Let’s learn together! 1. The problem of web page printing. Before this, I generally used the easier-to-use LODOP to perform prin

2025-08-06
Vue.js implements a custom paging component vue-paginaiton

Vue implements a paging component vue-paginaitonvue and has been used for a while, and I feel that I no longer want to operate the DOM directly. The data-bound programming experience is really good. An implementation of a paging component. The css here wi

2025-08-06
js image processing example code

Copy the code as follows: var ImgObj=new Image(); //Create an image object var AllImgExt=".jpg|.jpeg|.gif|.bmp|.png|"//All image format types var FileObj,ImgFileSiz

2025-08-06
JS front-end interview questions and answers sorted out (I)

Part1 Handwritten Code On-site handwritten code is a very common type of interview questions in interviews now, examining the basic data structure and algorithm capabilities. 1. Implementation of array deduplication Basic array deduplication Array.prototy

2025-08-06
Implementation code for determining whether child nodes exist

Implementation code for determining whether there is a child node Object.prototype.exist = function(){ if(typeof this !='undefined' && this.length>=1){ return true; }

2025-08-06
Detailed explanation of Bootstrap plug-in

The components discussed in the previous section Layout Components are just the beginning. Bootstrap comes with 12 jQuery plug-ins, which extend the functions and can add more interactions to the site. Even if you are not a high-level JavaScript developer

2025-08-06
JS simple method to obtain and display the current time

This article describes how JS can simply obtain and display the current time. Share it for your reference, as follows:<!DOCTYPE html><html xmlns="http://www.w3.org/1999/xhtml"><head>

2025-08-06
Tutorials for Optimizing HTML5 Rendering with Layered Canvas

This article mainly introduces the tutorial on using layered canvas to optimize HTML5 rendering. It comes from the technical documents of the official IBM website developer. Friends who need it can refer to the introduction. Usually, when playing 2D games

2025-08-06
Implement the method of clicking the return button to close the current page and window in WeChat, Alipay, and Baidu Wallet

Recently, I have been using WeChat, Alipay, and Baidu Wallet to realize web payment. The page will be automatically closed for successful payments, and an error message will be displayed for failed payments. When on the error page, click Return or Android

2025-08-06
Classic tutorial on advanced features of javascript object-oriented programming (worthy of collection)

This article describes the advanced features of object-oriented programming in JavaScript. Share it for your reference, the details are as follows: 1. Three ways to create objects: the first constructor: new Objectvar a = new Object();ax = 1, ay = 2; the

2025-08-06
JavaScript method to compare whether the current time is within a specified time period

This article describes the method of JavaScript to compare whether the current time is within a specified time period. Share it for your reference, the details are as follows: function checkTime(stime, etime) { //Start time var arrrs = stime.split("

2025-08-05
Detailed explanation of HTML style tags and related CSS references

This article mainly introduces the detailed explanation of HTML style tags and related CSS references. It is the basic knowledge in the introduction to HTML and CSS. Friends who need it can refer to the HTML style tag style tag-- Use this tag when declari

2025-08-05

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