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Speed Question jQuery.each vs. for loop

Speed Question jQuery.each vs. for loop

Vanilla JavaScript loops vs. jQuery.each: A Performance Comparison This article explores the performance differences between using vanilla JavaScript for loops and jQuery's $.each method for array iteration. We'll demonstrate that, for speed, vanill

Feb 24, 2025 am 09:20 AM
jQuery get element ids list using jQuery.map()

jQuery get element ids list using jQuery.map()

Here is a quick example of the jQuery .map() function. For example, if you want to get a comma-separated list of all the checkbox IDs in the form, you can do this! Check out the quick demo at https://jsfiddle.net/CEcgL/. $(':checkbox').map(function() { return this.id; }).get().join(','); jQuery.map() Official Documentation jQuery Element ID and jQuery map FAQ (FAQ) How to select meta by ID in jQuery

Feb 24, 2025 am 09:15 AM
Node.js Events and EventEmitter

Node.js Events and EventEmitter

Node.js' efficiency is partly due to its event-based architecture. Unlike reading all necessary files (like PHP) every request, Node.js simply starts the server, initializes most variables, declares the function, and then waits for the event to happen. Although Node.js has some useful events built into it, such as request events, wouldn't it be more useful to be able to create and trigger custom events? This article will explore how to achieve this. First, we will demonstrate how to issue a normal event. For example, when someone enters a store, the bell rings to indicate its existence, which is similar to the observer pattern where events act as subjects and all functions attached to events are like observers. The store examples are as follows: const events = re

Feb 24, 2025 am 09:14 AM
An Overview of the JavaScript History API

An Overview of the JavaScript History API

This tutorial explores the JavaScript History API, a powerful tool for manipulating a user's browsing history within modern web applications. Key features include adding, removing, and replacing history entries, enhancing user experience and providi

Feb 24, 2025 am 09:13 AM
Happy Holidays from CoffeeScript

Happy Holidays from CoffeeScript

This festive HTML5/CoffeeScript application brings holiday cheer to your browser! It creates an animated winter scene complete with falling snowflakes, blinking lights, and Jingle Bells music. While seemingly simple, it showcases powerful HTML5 and

Feb 24, 2025 am 09:12 AM
5 Ways to Fix jQuery $.browser function missing not found

5 Ways to Fix jQuery $.browser function missing not found

Key Takeaways The jQuery $.browser function has been deprecated due to its vulnerability to spoofing and misrepresentation. Developers are encouraged to avoid browser-specific code and instead use feature detection for more reliable results. Fiv

Feb 24, 2025 am 09:10 AM
6 Useful HTML5 Tools

6 Useful HTML5 Tools

Six practical tools to help you easily master HTML5 This article will introduce six excellent online tools that can help you understand and create HTML5 websites. These tools can be accessed on desktop browsers. Some tools have specific requirements for browser versions and will be explained in the tool description. The order of the list is in no particular order. You may not be able to use some tools, but if you master them all, you will become a better developer. Due to subjective factors, I chose tools that are highly practical rather than just popular. Every designer and developer has their own preferences, and this article cannot cover all tools. Nevertheless, I believe this list will help new, intermediate or experienced web developers. 1. Adobe Edge Animat

Feb 24, 2025 am 09:06 AM
What's New in Chrome 24

What's New in Chrome 24

Google Chrome 24: A Detailed Look at the New Features Six months have passed since my last update on Google Chrome's new features. While the browser has seen consistent improvements, attracting new users, significant breakthroughs have been less freq

Feb 24, 2025 am 09:04 AM
HTML5 Browser Geolocation Browser Support

HTML5 Browser Geolocation Browser Support

This blog post explores how different web browsers handle HTML5 Geolocation and Google Maps. The author tested Firefox 16, Chrome 23, IE9, IE8, and Safari 5 for Windows. Modern browsers generally support this feature. The tests were conducted near

Feb 24, 2025 am 09:03 AM
10 jQuery Sticky Scroll Plugins

10 jQuery Sticky Scroll Plugins

This post showcases twelve excellent jQuery plugins for creating sticky scroll effects, keeping elements visible while scrolling. Let's explore them! Sticky: A simple plugin to make any element persistently visible. Source Demo stickyMojo: A

Feb 24, 2025 am 09:02 AM
10 Useful jQuery iPad Code Snippets and Plugins

10 Useful jQuery iPad Code Snippets and Plugins

We have put together some of the easy to use tricks, code snippets and plugins all for the iPad device . Be sure to let us know in the comments which snippets and plugins you found useful and of any others that you know of that can be useful. Key T

Feb 24, 2025 am 08:55 AM
Web Scraping in Node.js

Web Scraping in Node.js

Core points Node.js' web crawling involves downloading source code from a remote server and extracting data from it. It can be implemented using modules such as cheerio and request. The cheerio module implements a subset of jQuery that can build DOM from HTML strings and parse, but it can be difficult to deal with poorly structured HTML. Combining request and cheerio allows you to build a complete web crawler to extract specific elements of a web page, but handling dynamic content, avoiding bans, and handling websites that require login or use CAPTCHA can be more complex and may require additional tools or strategies. Web page

Feb 24, 2025 am 08:53 AM
jQuery Filter Objects by Data Attribute Value

jQuery Filter Objects by Data Attribute Value

This article describes how to use jQuery to filter elements based on data attribute values. The following code snippet selects all div elements with IDs starting with "proto_" and the data attribute "state" value is "open": var $el = $('div[id^=proto_]').filter(function() { return ($(this).data("state") == "open"); }); console.lo

Feb 24, 2025 am 08:52 AM
Array Extras in JavaScript

Array Extras in JavaScript

JavaScript arrays are a basic data structure in many programming languages, and JavaScript is no exception. To simplify many details of working with arrays, JavaScript provides a set of features called array extension functions. This article introduces various array extension functions and their uses. Key Points Array extension functions in JavaScript are functions that simplify many details of working with arrays, improving the readability of the code by replacing complex loops with function calls. They include forEach(), map(), filter(), every(), some(), reduce(), reduceRight(), ind

Feb 24, 2025 am 08:49 AM

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