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Getting element styles using native JavaScript is just a way to get them

ps: It is to get the style, not to set the style. If no style value is set for the element, the default value given by the browser is returned. (Forum compilation) 1. element.style: Only the style value written in the style attribute in the element label

2025-04-24
Instructions for using fs.readSync method in node.js

Method description: synchronous version of fs.read(). The method will return a bytesRead (number of bytes read) syntax: the copy code is as follows: fs.readSync(fd, buffer, offset, length, position) Since this method belongs to the fs module,

2025-04-24
Instructions for using fs.writeFile method in node.js

Method description: Write data to the file in an asynchronous manner. If the file already exists, the original content will be replaced. Syntax: The code copy is as follows: fs.writeFile(filename, data, [options], [callback(err)]) Since this method belong

2025-04-24
Analysis of Javascript array and dictionary usage

This article analyzes the usage of Javascript arrays and dictionary. Share it for your reference. The specific analysis is as follows: Javascript's array Array is both an array and a dictionary. Let's give an example to see how the array is used.

2025-04-24
A brief discussion on the setInterval event of js

The setInterval() method will call the function continuously until clearInterval() is called or the window is closed. The ID value returned by setInterval() can be used as a parameter to the clearInterval() method. Setinterval() usage s

2025-04-24
Instructions for using fs.closeSync method in node.js

Method description: Synchronous version of close(). Syntax: The code copy is as follows: fs.closeSync(fd) Since this method belongs to the fs module, it is necessary to introduce the fs module (var fs= require("fs") before use) to receive parame

2025-04-24
Understand callback functions in javascript (callback)

Recently, I'm looking at express, and I've seen it everywhere, using callback functions as parameters. If this concept cannot be understood, the code of nodejs and express will be very confused. For example: copy the code as follows: app.use(funct

2025-04-24
html5 guide - 6. How to create offline web application to achieve offline access

Comment: Today our content is about how to create offline web applications. Its advantage is that the browser can download the web resources we specified, so that users can use our site normally when offline. Today our content is about how to create offli

2025-04-24
Implementation principle and code of function implementation at the top of the CSDN Blog return to the page

Comment: The function of imitating CSDN Blog returns to the top of the page has only been modified in 2 places: the return speed has been changed to go back slowly, and the time when the icon on the return top appears has been changed to display as long a

2025-04-24
Instructions for using fs.link method in node.js

Method Description: Create a hard link. Syntax: The code copy is as follows: fs.link(srcpath, dstpath, [callback(err)]) Since this method belongs to the fs module, it is necessary to introduce the fs module (var fs= require("fs") before use) to

2025-04-24
Method to double the loading speed of javascript (solve the problem of slow loading speed of JS)

Usually, some js codes are loaded on our website, statistics, Google ads, Baidu Alliance, Alibaba Mom advertising codes, and a bunch of them, which ends up making the page loading very slow, very slow. Solution: Change the method of js to double the loadi

2025-04-24
Rewrite document.write to achieve unblocked loading of js ads (supplement)

Loading JavaScript without blocking has a great effect on page performance optimization, which can effectively reduce the blockage of page load by js. Especially some advertising js files, since the advertising content may be rich media, it is likely to b

2025-04-24
Embedding method of flash video format (flv, swf) file in html file

The format of flash file: .FLV and .SWF flash video formats have two extensions: .flv and .swf. What is the difference between them? (1) A .flv file (flash video) is a video stream and audio based on picture. If you are running a streaming service, flv wi

2025-04-24
Node.js tutorial: Installing and configuring Node.js graphics tutorial on Windows and Linux

In this chapter, we will introduce to you how to install Node.js on window and Linux. This installation tutorial takes Node.js v0.10.26 version as an example. The Node.js installation package and source code download address are: http://www.nodejs.org/dow

2025-04-24
Detailed explanation of CSS3 text shadow text-shadow attribute

Text shadow text-shadow property special effects: 1. Shadow in the lower right corner, shadow in the lower left corner, shadow in the upper left corner, shadow in the upper right corner, shadow in the upper right corner XML/HTML Code Copy content to the c

2025-04-24

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