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  • How to control image scaling effect by mouse scroll wheel

    How to control image scaling effect by mouse scroll wheel

    This article describes the method of implementing the mouse scroll wheel to control the image scaling effect. Share it for your reference. The specific implementation method is as follows: Copy the code code as follows:
    2025-05-28
  • JavaScript automatically generates random strings containing numbers and characters

    JavaScript automatically generates random strings containing numbers and characters

    This article describes the method of automatically generating random strings containing numbers and characters in JavaScript. Share it for your reference. The details are as follows: Here we mainly use the two functions Math.random() and Math.floor(). Mat
    2025-05-28
  • Detailed explanation of JavaScript's prototype inheritance

    Detailed explanation of JavaScript's prototype inheritance

    JavaScript is an object-oriented language. There is a very classic saying in JavaScript: Everything is an object. Since it is object-oriented, there are three major characteristics of object-oriented: encapsulation, inheritance, and polymorphism. Here we
    2025-05-28
  • Analysis of the definition and usage of parseInt() function in javascript

    Analysis of the definition and usage of parseInt() function in javascript

    This article describes the definition and usage of the parseInt() function in JavaScript. Share it for your reference. The specific analysis is as follows: This function can parse a string and return an integer. Syntax structure: The copy code code is as
    2025-05-28
  • Instructions for using console.time method in node.js

    Instructions for using console.time method in node.js

    Method description: The start time, corresponding to console.timeEnd, record the time period. Syntax: The code copy is as follows: console.time(label) Receive parameters: Label and label of start time console.log Corresponding example: The code copy is as
    2025-05-28
  • Detailed explanation of function patterns in JavaScript

    Detailed explanation of function patterns in JavaScript

    The role of the JavaScript design pattern is to improve the reusability and readability of the code, making the code easier to maintain and extend. In javascript, a function is a type of object, which means it can be passed as a parameter to other functio
    2025-05-28
  • Compilation and summary of HTML knowledge points in front-end (recommended)

    Compilation and summary of HTML knowledge points in front-end (recommended)

    1. HTML Overview htyper text markup language is hypertext markup language hypertext: it means that the page can contain non-text elements such as pictures, links, and even music, programs. Markup language: a language composed of tags (tags). Web page ==HT
    2025-05-28
  • Intermediate HTML tutorial bad tags

    Intermediate HTML tutorial bad tags

    This time we focus on some fairy tale worlds and prehistoric HTML tags. They are bad, dirty, ugly, random, ridiculous attributes abandoned by HTML standards, and can only work partly on a subversion of the browser or tags that can be replaced by new ones.
    2025-05-28
  • Discussion on the example of paying attention to js html splicing

    Discussion on the example of paying attention to js html splicing

    What do you want others to solve for you, what is the address, var hrf='
    2025-05-28
  • Detailed explanation of the memory release problem of JavaScript

    Detailed explanation of the memory release problem of JavaScript

    This article explains in detail the timing and methods of memory management and release by JavaScript and IE browser, hoping to be helpful to front-end developers. The code of a memory-free instance copy code is as follows: <SCRIPT LANGUAGE="JavaScript"><
    2025-05-28
  • JavaScript canvas based on HTML5 canvas to create arrow component

    JavaScript canvas based on HTML5 canvas to create arrow component

    Example: Say less nonsense, just go to the code: arrow.js/** * Implement the function of drawing arrows between two points* @author [email protected] * @version 1.0 * @date 2013.05.23 */;(function(window
    2025-05-28
  • Share 25 application cases of circular elements in web design

    Share 25 application cases of circular elements in web design

    Today, this post lists examples of circular elements being applied very well in web design, showing you beautiful circular buttons, menus, pictures and other details. You will see that if designed properly, the circular application can make your website w
    2025-05-28
  • Instructions for using fs.rename method in node.js

    Instructions for using fs.rename method in node.js

    Method Description: Modify the file name to change the file storage path. Syntax: Copy the code as follows: fs.rename(oldPath, newPath, [callback(err)]) Since this method belongs to the fs module, it is necessary to introduce the fs module before use (var
    2025-05-28
  • Three ways and examples to implement inheritance in JavaScript

    Three ways and examples to implement inheritance in JavaScript

    Although javascript is an object-oriented language, its inheritance mechanism was different from other traditional object-oriented languages ​​since its inception. It is a prototype-based inheritance mechanism. However, under this mechanism, there are sti
    2025-05-28
  • Instructions for using fs.readFile method in node.js

    Instructions for using fs.readFile method in node.js

    Method description: Read file contents in an asynchronous manner. Without top content encoding, it will be output in the buffer format, such as:<Buffer 32 33 31 32 33 31 32 33 31 32 33> Syntax: Copy the code as follows: fs.readFile(filename,
    2025-05-28
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