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Detailed explanation of nodeJs memory leak problem

I accidentally discovered that when react is rendered in server, when NODE_ENV != production, it will cause memory leaks. Specific issues: https://github.com/facebook/react/issues/7406. along with

2025-08-07
A brief discussion on in-for loop in js

A brief discussion on in-for loop in js<!doctype html><html lang="en"><head><meta charset="UTF-8"><title> Document</title>

2025-08-07
The most comprehensive JS countdown code

The first type: JavaScript countdown code HTML code that is accurate to seconds:<form name="form1"><div align="center" align="center"><center> There are still:<br>

2025-08-07
Understanding of javascript and classic case analysis

Introduction to js: JavaScript is a programming language that can make your web page more lively, and it is also the easiest and most convenient language in web page design. You can easily use JavaScript to create friendly welcome messages, beautiful digi

2025-08-07
Simple implementation method of obtaining styles in JS (recommended)

Basic code:<!DOCTYPE html><html lang="en"><head><meta charset="UTF-8"><title> Document</title><style> div{ color:

2025-08-07
Quick solution to the Angular lazy loading mechanism that cannot fall back after refreshing

Today I encountered a very strange problem in the project. I used oclazyload to lazy load the angular module. After refreshing the page, I clicked the fallback button and could not return to the previous page. It is estimated that the lazy loading mechani

2025-08-07
AngularJs Injecting Services Into Controllers详解

The method of loading service into the controller as a dependency resource is very similar to the method of loading it into other services. Since javascript is a dynamic language, DI cannot figure out that it should be passed through static types (like in

2025-08-07
A brief discussion on the life cycle of cookies

Set the valid time of the cookie object. The setMaxAge() method can set the valid time of the cookie object. For example: Cookie c = new Cookie("username","john");c.setMaxAge(60);//60 seconds means cs

2025-08-07
AngularJS filtering and sorting detailed explanation and example code

I have learned about the usage of AngularJS before, so I will simply write a small program to implement the functions of query filtering and sorting. In this program, you can learn: 1 angularjs filter 2 ng-repeat usage method 3 controller usage 4 data bin

2025-08-07
HTML5 video event application example

Use the onloadedmetadata event to get the video's time length, and use the ontimeupdate event to get the current playback progress of the video. The example code is as follows 1. Get the video's time length When the video is loaded into video, use

2025-08-07
Discussion on the execution order of 3 parts separated by semicolons in For loop

What caused this problem is the result of the running of a JS program: The copy code code is as follows: var i = 0; function a(){ for(i=0;i<20;i++){ } } function b(){ for(i=0;i<3;i++){ a(); }

2025-08-07
Examples of the implementation of pop-up windows and pages that turn gray and are not operational

If you don't know yet, you can take a look at this simple example below. The code copy is as follows:<html><head><title> After a window pops up, the subsequent layer is inoperable </title><script>function show() //显示隐藏层和弹出层{var hideobj

2025-08-07
Common HTML meta tag attributes (required for website compatibility and optimization)

Tags provide metadata about HTML documents. The metadata will not be displayed on the page, but is readable to the machine. It can be used in browsers (how to display content or reload pages), search engines (keywords), or other web services. Original add

2025-08-07
How to correctly call javascript functions from hyperlinks

Clicking on the hyperlink to call JavaScript functions, most people use: Copy the code as follows: <a href="javascript:function();">But this has a disadvantage, that is, after clicking on the link, the GIF animation on the page will be stationary. Try to

2025-08-07
Vue form instance code

What is Vue.js? Vue.js is a library for building interactive web interfaces. Vue.js provides MVVM data binding and a composable component system with a simple and flexible API. Vue.js has simple features: HTML template + JSON data, and create another V

2025-08-07

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