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Introduction to node.js tutorial

What is Node? It is better to try to cover everything when writing something, so I have also taken some basic concepts from the Internet. Some places have changed their understanding of my own. If you have any understanding of these conceptual things, you

2025-08-17
Detailed explanation of Directive knowledge in front-end framework Vue.js

Although Directive seems to be similar to the definition in Angular, Directive is an expansion of DOM functions, but Vue's Directive is much weaker. Because Vue Component actually contains operations on DOM, most of the time we write

2025-08-17
How to remove duplicate data in ng-repeat in Angularjs

This article describes the method of removing duplicate data in Angularjs' ng-repeat. Share it for your reference, the details are as follows: 1. JS: ngApp.filter('unique', function () { return function (collect

2025-08-17
Simple example sharing of javascript to determine whether it is a mobile phone or a computer to access a web page

Copy the code as follows: var system ={}; var p = navigator.platform; system.win = p.indexOf("Win") == 0; system.mac = p.indexOf("Mac") =

2025-08-17
Comprehensively analyze the usage method of scrollspy (scrolling monitoring) in Bootstrap

bootstrap source code analysis scrollspy (scroll listening) source code file: Scrollspy.js implement function 1. When the hashkey set in the scroll area reaches the valid position, the specified items on its navigation are set accordingly. 2. The navigati

2025-08-16
JS achieves seamless scrolling effect that can control left and right directions

This article shares the seamless scrolling effect JavaScript code implementation for your reference. The specific content is as follows] Reproduction diagram: Implementation code:<!DOCTYPE html><html><head><meta charset="gb2312" />

2025-08-16
Methods to implement ping functions in pure Javascript

This article describes the method of implementing ping functions in pure Javascript. Share it for your reference. The specific implementation method is as follows: function ping(ip) { var img = new Image(); var start = new Date().ge

2025-08-16
Summary of methods for determining whether a number is a prime number

Preface Today I saw a question to determine whether a number is a prime number. It doesn't seem difficult. Therefore, I decided to implement the DOM structure.<!DOCTYPE html><html lang="en"><head><meta charset="UTF-8"><title> Calculate 500 to

2025-08-16
JS changes transparency to implement carousel graph algorithm

I have shared a carousel graph algorithm that changes the hierarchy before. Today, I continue to use transparency to achieve a displacement-free carousel graph algorithm. Implementation logic: Position all the pictures to be carouseled together, that is,

2025-08-16
Learn Nodejs from me (I) --- Introduction to Node.js and installation and development environment

Learning materials 1. In-depth and easy to understand Node.js 2. Introduction to the Node.js development guide (I only picked up what I think is important) Node.js is a platform that allows Javascript to run on the server without the browser, not a langua

2025-08-16
A brief overview of Html5 syntax and rules

Html5 is case-sensitive and omits slashes that close empty elements. As long as the attribute value does not contain restricted characters such as (> = or spaces), you can do not need to add quotation marks. 1. Html5 is case-sensitive. This is my2 and

2025-08-16
JavaScript gets the selected value in the select tag

Copy the code as follows: var obj = document.getElementById("testSelect"); //Locate idvar index = obj.selectedIndex; //Select index var text = obj.opt

2025-08-16
Simple examples of native JS implementing image carousel and fade-in effects

I can't raise my interest in CSS recently because I have been resentful about picture carousels and have not learned well, so I took some time to get familiar with JS. Then I walked to the black road and wrote the effect of carousel and picture fading

2025-08-16
JavaScript mouse special effects collection

This article has shared the js mouse special effect example code for your reference. The specific content is as follows: Disable the right mouse button<script type="text/javascript"> //为文档的鼠标按下事件定义回调 document.onmousedo

2025-08-16
Detailed introduction to HTML5 Fullscreen API

In increasingly real web applications, JavaScript is becoming more and more powerful. FullScreen API is a new JavaScript API, simple and powerful. FullScreen allows us to programmatically request full screen display from users. If the interaction is compl

2025-08-16

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