【忙しい人のための】Next.js公式チュートリアルを完走してきたので記事１本で振り返る【ギュッと凝縮】 | DevelopersIO
本記事はNext.jsのチュートリアルが大きく変わったためリンク切れを起こしています。 技術メモのため記事としては残しますが、リンク切れにご留意ください。 また機会があれば新チュートリアルで記事を書こうと思いますm(_ _)m こんちには。 データアナリティクス事業本部 インテグレーション部 機械学習チームの中村です。 今回は以下のNext.jsのチュートリアルをほぼ一通り（SEOのところ以外）実施しましたので、ポイントを記事化しました。 https://nextjs.org/learn/foundations/about-nextjs" チュートリアル自体は、以下のような内容が分かるものとなっています。 CRA（create-react-app）のみ使用しているとイメージしづらい、素のHTML + JavaScriptとReactの関係のイメージが分かる Reactがフレームワークではな
Today we’re excited to announce the release of TypeScript 4.8! If you’re not yet familiar with TypeScript, it’s a language that builds on JavaScript and adds syntax for types. These types let you put your expectations and assumptions into your code, and those assumptions can then be checked by the TypeScript type-checker. This checking can help avoid typos, calling uninitialized values, mixing up
All JavaScript and TypeScript Features of the last 3 years
TypeScript as envisioned by Stable DiffusionThis article goes through almost all of the changes of the last 3 years (and some from earlier) in JavaScript / ECMAScript and TypeScript . Not all of the following features will be relevant to you or even practical, but they should instead serve to show what’s possible and to deepen your understanding of these languages. There are a lot of TypeScript fe
ESLint v9.x end-of-life is 2026-08-06 and will not be maintained after that. Upgrade or consider long-term support options Published 05 Apr, 2024 under Release Notes ESLint v9.0.0 released We just pushed ESLint v9.0.0, which is a major release upgrade of ESLint. This release adds some new features and fixes several bugs found in the previous release. This release also has some breaking changes, so
GitHub - kurtextrem/awesome-performance-patches: 🚀⚡ Awesome list about performance related patches/PRs.
fabian-hiller/valibot - convert Set to Array pnpm - convert objects to Set and Map preact/signals - convert Set to Linked Lists, adds lazy value evaluation TanStack/table - replace immutable spread calls with mutable arrays | blog post rollup - replace Set with BigInt | Mastodon explainer parcel-bundler/parcel - convert graph to array of BitSets, avoid new calls, Uint32Array + Wasm instead of BigI
We have thousands of engineers committing React code every day to Meta’s largest codebases. Part of our responsibility on the Flow team is to make it as easy as possible for anyone to contribute, from design system React experts to C++ engineers making one-off internal pages to support their backend services. Over the last year, we’ve built several new language features to make it easier than ever
Today we’re excited to announce our Release Candidate (RC) of TypeScript 4.8. Between now and the stable release of TypeScript 4.8, we expect no further changes apart from critical bug fixes. To get started using the RC, you can get it through NuGet, or use npm with the following command: npm install -D typescript@rc You can also get editor support by Downloading for Visual Studio 2022/2019 Follow
Biome v2.4—Embedded Snippets, HTML Accessibility, and Better Framework Support
Biome v2.4 is the first minor release of the year! After more than ten patches from v2.3, today we bring to you a new version that contains many new features! Once you have upgraded to Biome v2.4.0, migrate your Biome configuration to the new version by running the migrate command: biome migrate --write Highlights Among all the features shipped in this release, here are the ones we think you’re go
WebKit Features in Safari 18.4
Mar 31, 2025 by Jen Simmons, Saron Yitbarek, Jon Davis, Razvan Caliman, Karl Dubost, Brady Eidson, Elika Etemad, Youenn Fablet, Matthew Finkel, Simon Fraser, Timothy Hatcher, David Johnson, Anne van Kesteren, Daniel Liu, Keith Miller, Rupin Mittal, Tim Nguyen, Pascoe, Abrar Rahman Protyasha, Richard Robinson, Lily Spiniolas, Brandon Stewart, John Wilander and Luming Yin ContentsDeclarative Web Pus
Do you want to get up to speed with React as quickly as possible? I’ve put together a super helpful cheatsheet to give you a complete overview of all of the React concepts you need to know in 2022. Click here to download the cheatsheet in PDF format. It includes all of the essential information in this article as a convenient PDF guide. Let’s get started! Table of Contents React Elements React Ele
WebKit Features in Safari 18.2
Dec 9, 2024 by Jen Simmons, Ada Rose Canon, David Degazio, Yoel Hawa, Etienne Segonzac, and John Wilander ContentsCSSSpatial videos and photosWebXRGenmojiMediaHTMLWebAssemblyWeb APIJavaScriptSecurity and PrivacyWeb InspectorWebDriverWKWebViewBug Fixes and moreUpdating to Safari 18.2Feedback Today marks the arrival of Safari 18.2. With it, WebKit adds 61 new features and 111 resolved issues. Highli
The triple dot syntax (...) in JavaScript: rest vs. spread In JavaScript, the same syntax – triple dots (...) – is used for two different mechanisms: Rest syntax is for receiving data. Spreading is for sending data. This blog post examines how these mechanisms work and why they are not operators. Receiving data: rest syntax # A rest parameter is a special kind of parameter that receives all remai
This blog post is about the ECMAScript proposal “Array.fromAsync for JavaScript” by J. S. Choi. It introduces a static method for converting asynchronous iterables to Arrays. Tools for working with synchronous iterables # Currently JavaScript provides several tools for working with synchronous iterables – for example: function* createSyncIterable() { yield 'a'; yield 'b'; yield 'c'; } // Array-de
Building a type-safe dictionary in TypeScript - LogRocket Blog
Editor’s note: This article was last updated by Shalitha Suranga on 20 February 2024 to include advanced type checking techniques like adding, removing, and checking for keys. Developers use a variety of data structures in codebases, all based on programming requirements. Storing key-value data pairs is a general requirement for most software development projects. For example, you may need to stor
Update 2022-12-15: New section “How will this proposal affect future JavaScript APIs?” In this blog post, we look at the ECMAScript proposal “Iterator helpers” by Gus Caplan, Michael Ficarra, Adam Vandolder, Jason Orendorff, Kevin Gibbons, and Yulia Startsev. It introduces utility methods for working with iterable data: .map(), .filter(), .take(), etc. The style of the proposed API clashes with th
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Announcing TypeScript 4.8 - TypeScript
ESLint v9.0.0 released - ESLint - Pluggable JavaScript Linter
New Flow Language Features for React
Announcing TypeScript 4.8 RC - TypeScript
The React Cheatsheet for 2022
The triple dot syntax (`...`) in JavaScript: rest vs. spread
ECMAScript proposal: `Array.fromAsync()`
ECMAScript proposal: iterator helpers