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Comment on what I know Node.js

First of all, the performance. When used, it feels like the performance of Node.js is not as good as expected. The memory usage is about the same level as Ruby, and it is more than Python and PHP. In terms of computing performance (i.e. CPU usage), pure c

2025-04-10
Detailed explanation of the link rel and target

The question about target="_blank" stay and will be discussed many times online. Some say they need to keep, and some say they need to remove them. The party who advocates stay mainly considers the attribute of target="_blank" currentl

2025-04-10
Introduction and use of javascipt:filter filtering

javascipt : filter 过滤var List = sizes.filter(function (size) {return size.id == 12;});sizes = [　　{id : 10,,stock:130},{i

2025-04-10
Semantics and usage location of tags in HTML pages

We have been emphasizing semantics in our articles on CuoXIn.com, so how should we use HTML tags? Where are their general use locations? When I first came into contact with XHTML CSS to design web pages, I had no experience in using tags and was very casu

2025-04-10
Example of the difference between $("").click and onclick

Html代码<script type="text/javascript"> $(function(){ $("#btn4").click(function(){ $("#btn3").click(); }); }); function ch

2025-04-10
Javascript API extension 2 of the raid HTML5 - Geographic Information Services and Geographic Location API Learning

A more popular type of service is called location-based service (LBS). This type of service is the information that enterprises use areas near the coordinates of a certain point (such as the location where the user is located), such as common map-related

2025-04-10
Analysis of javascript anonymous function instance

This article describes the usage of anonymous functions in JavaScript. Share it for your reference. The specific analysis is as follows: Abstract: This article explains the most basic and important thing in JavaScript - functions. The reason I wrote this

2025-04-10
Detailed discussion on JavaScript memory leak

1. What is a closure and the scope chain involved in the closure will not be discussed here. 2. JavaScript garbage collection mechanism JavaScript does not need to manually release memory, it uses an automatic garbage collection mechanism (garbage collect

2025-04-10
HTML Table Tag Tutorial (43): Vertical Alignment Properties VALIGN of Table Header

In the vertical direction, the alignment of the table headers can be set, including top, center and bottom. Basic syntax<th valign=Top><th valign=Middle><th valign=Bottom> The top is the top, the Middle is the center, and Bottom is the center

2025-04-10
JavaScript onkeypress event beginner instance (press or hold a keyboard key)

JavaScript onkeypress Event The onkeypress event is triggered when the user presses or holds a keyboard key. Note: There are some slight differences between the onkeypress event and the onkeydown event. The onkeypress event does not handle the correspondi

2025-04-10
Example of implementation of adding music videos on html web page

1. Video tag supports firefox automatic playback Google, ie does not support automatic playback<video controls=controls autoplay=autoplay name=media>

2025-04-10
JavaScript cross-domain method summary

Web development often requires facing cross-domain problems. The root cause of cross-domain problems is homologous strategies in browser security. For example, for http://www.a.com/1.html: 1.http://www.a.com/2.html is homologous; 2.https://www.a.com/2

2025-04-10
HTML table markup tutorial (36): Background color attribute BGCOLOR of the table header

<TH>Tags are used to set properties of a header in a table. See the table below:<th> Mark attribute attribute description

2025-04-10
JavaScript implements a method to check whether ads on pages are blocked by AdBlock

Everyone hates advertising. When watching TV, movies, Youku, and web pages, I also hate the advertisements flying all over the sky. Advertising is something that is not popular. However, for a small and medium-sized website webmaster/blogger, advertising

2025-04-10
Solution to solve the problem of referer compatible with major browsers under js

HTTP Header referer mainly tells people where I came from, which is to tell people which page I came from, which can be used to count the source of users who access this website, and can also be used to prevent theft link. The best way to get this thing i

2025-04-10

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