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Asynchronous APIs Using the Fetch API and ES6 Generators

Core points ECMAScript 6 (ES6) better supports asynchronous programming through Promise and Generator, and introduced the Fetch API, designed to replace XMLHttpRequest as the basis for communicating with remote resources. The Fetch API method returns ES6 Promise objects that can be used with Generator to form the basis of complex asynchronous operations, such as a series of operations, where each operation depends on the value returned by the previous operation. Generator can be used with the Fetch API to perform tasks such as long polling, where clients are constantly

Feb 19, 2025 am 08:43 AM

Build Your Own WordPress Contact Form Plugin in 5 Minutes

Key Takeaways Developing your own WordPress contact form plugin can help you better understand how WordPress works, improve your web development skills, and create a form that is tailored to your specific needs without unnecessary features. The

Feb 19, 2025 am 08:36 AM

An Introduction to Reasonably Pure Functional Programming

Key Takeaways Pure functions are essential in functional programming as they return the same output for the same input without causing side effects, enhancing predictability and testability. Functional programming reduces program complexity by b

Feb 18, 2025 pm 12:58 PM

Introduction to Functional Reactive Programming with RxJS

Key Takeaways Reactive programming is a method of programming with concurrent data streams, which can be asynchronous. It can be applied to programming problems because a CPU processes a stream of information consisting of instructions and data.

Feb 18, 2025 am 11:38 AM

Modular JavaScript: A Beginners Guide to SystemJS & jspm

Key Takeaways SystemJS and jspm are tools that can be used to overcome the limitations of JavaScript modularity. SystemJS is a module loader that can import modules in any popular format at run time, while jspm is a package manager built on top of

Feb 18, 2025 am 11:28 AM

Using the SoundCloud API with the JavaScript SDK

Key Takeaways The SoundCloud API allows developers to access almost any data they need. The API is a collection of URLs that provide access to data from SoundCloud servers, while the SDK (Software Development Kit) is a pre-written library for quer

Feb 18, 2025 am 11:20 AM

An Introduction to jQuery's Deferred Objects

JavaScript developers have long used callback functions to perform multiple tasks. A very common example is adding a callback through the addEventListener() function to perform various actions when events such as clicks or keys are triggered. The callback function is simple and easy to use and is suitable for simple scenarios. However, when web page complexity increases and many asynchronous operations need to be performed in parallel or sequentially, the callback function becomes difficult to manage. ECMAScript 2015 (also known as ECMAScript 6) introduces a native approach to dealing with such situations: Promise. If you don't know about Promise, you can read the article "Overview of JavaScript Promise

Feb 18, 2025 am 11:08 AM

The Importance of Writing Code That Humans Can Read

Key Points Clarity first: Readable code improves maintainability and collaboration, and writing easy-to-understand and modify code is crucial. Function and file management: Use functions to encapsulate reusable code and split large files into smaller, more manageable parts to simplify navigation and understanding. Naming Convention: Choose clear and descriptive names for functions and variables to improve readability and reduce the need for additional comments. Avoid over-optimization: While concise and optimized code is attractive, readability should be prioritized when performance impact is not significant, because modern JavaScript engines are very efficient in code optimization. Comment with caution: Use comments to explain "why" do this, rather than "do"

Feb 18, 2025 am 10:52 AM

How to Schedule Background Tasks in JavaScript

Core points JavaScript is a blocking language that can only perform one task at a time, which can cause long-running scripts to make the browser unresponsive. However, less important background tasks can be scheduled to run without directly affecting the user experience. requestIdleCallback is an API that allows scheduling of non-essential tasks when the browser is idle, similar to the functionality of requestAnimationFrame. It can be used with the timeout option to ensure that tasks run within a set time range, even if the browser is not idle. requestIdleCallback is an experimental feature with limited browser support and is not applicable to

Feb 18, 2025 am 09:04 AM

Parallel JavaScript with ParallelJS

ParallelJS: Elegant Web Worker Solution ParallelJS provides an elegant solution to the problems that may arise when using Web Worker, which provides a practical API with convenient abstraction and helper tools. The Worker interface introduced by HTML5 allows the creation of functions with long run time and high computational demands, which can be used simultaneously to improve website response speed. ParallelJS allows parallelization of JavaScript code, leveraging simultaneous multithreading (SMT) to use modern CPUs more efficiently. ParallelJS library provides methods such as spawn, map and reduce.

Feb 18, 2025 am 08:51 AM

6 Ways to Bind JavaScript's this Keyword in React, ES6 & ES7

Key Points JavaScript's this keyword can be confusing, especially within callback functions. In React, this references the component's context, which can cause problems when function contexts shift (e.g., promise callbacks). Several methods exist t

Feb 18, 2025 am 08:41 AM

5 Reasons I Won't Run SteamOS on My Gaming PC Yet

While SteamOS holds immense promise as a Windows alternative for PC gamers, its current state prevents me from making the switch anytime soon. Despite its potential and the appeal of a dedicated gaming OS, several key factors remain problematic: La

Feb 18, 2025 am 03:02 AM

Displaying Dynamic Messages Using the Web Notification API

Web Notifications API: Get website notifications out of browser restrictions We are used to mobile notifications from favorite websites or apps, but now it is becoming more common for browsers to push notifications directly. For example, Facebook will send notifications when you have a new friend request or someone comments on a post you participate in; Slack will send notifications in conversations you are mentioned. As a front-end developer, I'm curious how to leverage browser notifications to serve websites that don't handle a lot of information flow. How to add relevant browser notifications based on visitors’ interest in the website? This article will demonstrate how to implement a notification system on the Concise CSS website to provide a new version of the framework every time it is released.

Feb 17, 2025 pm 01:06 PM

The Myth of 'Unlimited Everything' Hosting Plans

The term "Unlimited Everything" in web hosting is often deceptive. While marketed as offering unlimited storage, bandwidth, and server resources, this is technically impossible. This is primarily a marketing tactic, but it can cause confu

Feb 17, 2025 pm 12:26 PM