The complete guide to Working With Strings in Modern JavaScriptThis guide is intended to cover everything you need to know about creating, manipulating and comparing strings in JavaScript.
The complete guide to working with strings in modern JavaScript
The complete guide to Working With Strings in Modern JavaScriptThis guide is intended to cover everything you need to know about creating, manipulating and comparing strings in JavaScript.
Real-world CSS vs. CSS-in-JS performance comparison
CSS-in-JS has taken a solid place in front-end tooling, and it seems this trend will continue in the near future. Especially in the React world. For example, out of 11492 people who participate in State of CSS survey in 2020 only 14.3% didn’t hear of Styled Components (a dominant CSS-in-JS library). And more than 40% of participants have used the library. I wanted to see an in-depth performance co
Comparing the New Generation of Build Tools | CSS-Tricks
A bunch of new developer tools have landed in the past year and they are biting at the heels of the tools that have dominated front-end development over the last few years, including webpack, Babel, Rollup, Parcel, create-react-app. These new tools aren’t designed to perform the exact same function, and each has different things they’re trying to achieve and features to get there. Despite their di
Handling User Permissions in JavaScript | CSS-Tricks
So, you have been working on this new and fancy web application. Be it a recipe app, a document manager, or even your private cloud, you‘ve now reached the point of working with users and permissions. Take the document manager as an example: you don’t just want admins; maybe you want to invite guests with read-only access or people who can edit but not delete your files. How do you handle that log
React State Management Libraries and How to Choose
The idea of state is one of the trickier things to nail down when you’re starting with React, and as your app grows, so do your state management needs. In this post I’ll give you the Grand Tour of state management options in React and help you decide which one to use in your project. What is State? Just so we’re on the same page, let’s talk about state for a second. Every interactive app involves
JS 状態管理ライブラリ探索記 - Introduction
これから何回かに分けて、Redux に代表される JS の状態管理ライブラリをいくつか見ていきます。 早速本題に入りたいところですが、その前になぜいくつもライブラリを知っていた方がいいのか、当たり前のように思うことをあえて考えてみる必要があります。 なぜなら、状態管理ライブラリがたくさんあるために、次のような疑問が出てくるからです。 どれでも好きなものを使えば開発がうまくいくのか？ 今までうまくいっていたライブラリを使い続ければ今後もうまくいくのか？ 選ぶとしても、何を基準に選べば良いのか？ 今回は少し立ち止ってこういった疑問について考えてみます。 ではそもそも状態管理とは、一体何のために、何をすることなのでしょうか？ 状態管理が目指すもの – 読みやすさの基本定理 状態管理をする目的は様々ですが、最も大切なことはリーダブルコード（読まれて無い方は是非一読を！）の中で「読みやすさの基本定理
The #1 tip to familiarize with new JavaScript Codebases
This will show the biggest and most changed files. The likelihood that these files are crucial for understanding the application is quite high. Read through them and understand them. What this data means in detail will be explained in this blog article now. Complexity and ChurnIn this chapter, I will explain to you the concepts of complexity and churn when it comes to code. It is the baseline to u
Table of Contents with IntersectionObserver | CSS-Tricks
Get affordable and hassle-free WordPress hosting plans with Cloudways — start your free trial today. If you have a table of contents on a long-scrolling page, thanks to, say, position: fixed; or position: sticky;, the IntersectionObserver API in JavaScript is the perfect companion to highlight items in the table of contents when corresponding content is in view. Ben Frain has a post all about this
Beyond Console.log() – Level up Your Debugging Skills — SitePoint
Stay Relevant and Grow Your Career in TechPremium ResultsPublish articles on SitePointDaily curated jobsLearning PathsDiscounts to dev toolsStart Free Trial7 Day Free Trial. Cancel Anytime. You may have established a pattern of coding that utilizes a few key tools offered by your browser’s console. But have you dug any deeper lately? There are some powerful tools available to you, and they might j
Next.js + Vercel + Cloudflare Workers KV + Googleスプレットシートで寄付管理サービスを作った
Next.js + Vercel + Cloudflare Workers KV + Googleスプレットシートで寄付管理サービスを作った philan.netという寄付の予算を決めて寄付した記録をつけるウェブサービスを作ったので、この記事では技術的な部分の解説をします。 philan.net自体については、次の記事で解説しています。 寄付をするために、寄付の予算と寄付の記録をSpreadSheetベースでつける philan.net というサービスを作った | Web Scratch この記事では、Next.js + Vercel + Cloudflare Workers KV + Googleスプレットシートを使って動いているphilan.netについて解説します。 あと検証中にCloudflare Workersを色々いじったのでそれについても書いていきます。 Idea phila
Why JavaScript Developers Should Prefer Axios Over Fetch
Photo by Brixiv from PexelsIn my previous article, “Deep Insights Into JavaScript’s Fetch API”, I discussed the basics of the Fetch API. But it’s worth acknowledging that fetch() isn’t consistently an ideal solution, and there are sometimes better alternatives for making HTTP requests. Here I’ll describe why Axios is better than fetch() in development. This is my 36th Medium article. Overview and
JavaScript performance beyond bundle size
23 Feb JavaScript performance beyond bundle size Posted February 23, 2021 by Nolan Lawson in performance, Web. 8 Comments There’s an old story about a drunk trying to find his keys in the streetlight. Why? Well, because that’s where it’s the brightest. It’s a funny story, but also relatable, because as humans we all tend to take the path of least resistance. I think we have the same problem in the
JavaScript の Module Fragments について
現在 TC39 の 3 月のミーティングのアジェンダが GitHub にて公開されている(Link)。 それによると、Module Frangments という新しいプロポーザルが@littledan氏によって提案される予定だ。 この記事では、現在の Module Frangments の概要とモチベーション、構文について解説する。もしさらなる詳細に興味がある場合は https://github.com/littledan/proposal-module-fragments を読んでほしい。 また、Module Fragments は現在 Stage 0 の提案であり、今後仕様が大きく変わっていくことが予想されるのでその点には注意してほしい。 概要 Module Fragments はインラインで JavaScript のモジュールを定義するための構文を導入する提案である。詳細は後述するが
Introducing Env: a better way to read environment variables in JavaScript - Human Who Codes
If you write server-side JavaScript, chances are you’ve need to read information from environment variables. It’s considered a best practice to share sensitive information, such as access tokens, inside of environment variables to keep them secure. However, the way environment variables are read from JavaScript is error-prone in subtle ways that might take you hours to figure out. When an error oc
Listify a JavaScript Array
Listify a JavaScript ArrayFebruary 18th, 2021 — 6 min read When you want to display a list of items to a user, I'm afraid .join(', ') just won't cut it: console.log(['apple'].join(', ')) // apple // looks good console.log(['apple', 'grape'].join(', ')) // apple, grape // nah, I want "apple and grape" console.log(['apple', 'grape', 'pear'].join(', ')) // apple, grape, pear // wut? Ok, so bust out y
Using AbortController As An Alternative For Removing Event Listeners | CSS-Tricks
Using AbortController as an Alternative for Removing Event Listeners The idea of an “abortable” fetch came to life in 2017 when AbortController was released. That gives us a way to bail on an API request initiated by fetch() — even multiple calls — whenever we want. Here’s a super simple example using AbortController to cancel a fetch() request: const controller = new AbortController(); const res
Interview with Ryan Dahl, Node.js & Deno creator by Evrone
In an interview with Evrone, Ryan Dahl speaks about the main challenges in Deno, the future of JavaScript and TypeScript, and tells how he would have changed his approach to Node.js if he could travel back in time. We met with Ryan Dahl, the creator of Node.js, to discuss the origins of the platform, its impact on JavaScript, and his thoughts on its future. In the interview he also reflected on hi
1. Techempower Rankings
25 October 2020 On Javascript Performance 1. Techempower Rankings by billwhizz Why is Javascript in the top 2 of techempower? This question was recently asked on github, prompted by the arrival of a new javascript platform near the summit of the intermediate techempower rankings. This platform, Just(js), is something I have been hacking on as a side-project for some time now. Here I will attempt t
Generators in Javascript: How to use them
Opening Note Hello fellow programmers 👋 In this article, we will walk-through the basics of generators in Javascript, which was introduced in ES6, and get across some real use cases. What is a generator? From its name, a generator is a function that allows you to generate one or more values by exiting and re-entering the execution procedure whilst saving its state (context) across multiple calls.
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JavaScript: What is the meaning of this? | Articles | web.dev