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The following rulesets are made available by this plugin. Presets: Strict (configs.strict) Enforce recommended rules designed to strictly enforce functional programming. Recommended (configs.recommended) Has the same goal as the strict preset but a little more lenient, allowing for functional-like coding styles and nicer integration with non-functional 3rd-party libraries. Lite (configs.lite) Good
Highlights The predefined array of config objects used by ESLint can be now accessed programmatically as ESLint.defaultConfig. To speed up loading, the ESLint CLI will automatically enable V8’s code cache in newer versions of Node.js. Custom languages can now provide their default options with the defaultLanguageOptions property. See the documentation about the Language object. Features 381c32b fe
Oxlint v0.10.0 is here! This release includes several exciting features, including many improvements to configuration files. New Features New Rules This release includes the following new rules: promise/no-callback-in-promise react/iframe-missing-sandbox node/no-new-require And adds auto fixes/suggestions for: eslint/no-plusplus Enable/Disable Rules by Category You can now enable or disable
こんにちは，株式会社 AbemaTV Web browser チームの山﨑です． 私たちのプロダクトでは JavaScript や TypeScript などの静的解析ツールである ESlint を CI で活用しています．しかし，ESlint の実行が不安定になっており開発速度や開発者体験が低下している問題が発生していました．具体的には， eslint を実行している CircleCI のインスタンスクラスを large にしても，job の失敗率が 50% を超えてしまっているような状態でした． この問題を解決すべく，eslint のルール毎の実行時間を計測する TIMIMG オプションを活用することでボトルネックとなっていたルールの特定・精査を行いました． 今回の記事では，不安定だった CI 上での ESlint 実行を TIMIMG オプションを活用し安定化させるに至った話をします
Back in July we announced our plan for ESLint going forward. Part of that announcement discussed transitioning ESLint to be a more general-purpose linter that is capable of linting any language. A lot of the core functionality of ESLint (finding files, parsing then, reporting problems) is generic, and so we’ve spent the past few months extracting the JavaScript-specific parts of the core. We’re no
For ESLint’s entire 11 year existence, we’ve only maintained one major release line at a time. This was both for practical reasons (limited team bandwidth) and technical reasons (our infrastructure was built to assume just one branch). Unfortunately, we haven’t been good at communicating our version support policy, which has led to confusion and frustration when we do a major release. Adopting a f
Highlights Types now included We’ve been receiving complaints about the @types/eslint package not being updated after the v9 release. While we did do an initial update to the package for v9, it quickly became apparent that regular updates to that package could not be accomplished in a timely manner. Ultimately, we decided that the only way for us to provide the type of experience we want for ESLin
はじめに こんにちは。calloc134 です。 バックエンド開発において、DB にデータを保存することはよくあることです。 DB と接続してデータのやり取りを行う必要がありますが、皆さんはどのようにしてデータを取得していますか？ ORM やクエリビルダを利用したり、逆に SQL を記述してコード生成を行ったりと、様々な方法があります。 今回はこれらのアプローチについて比較し、比較的斬新な方針を取っているものとして SafeQL を紹介します。 注意点 ここでは、TypeScript のバックエンド開発と、そこで利用されるライブラリを前提として話を進めます。 Go や Python など他の言語での利用方法については、別途調査が必要です。 SQL に対するアプローチ まず、SQL に対するアプローチには大きく分けて 2 つの方法があります。 それぞれのライブラリの使い方を、簡単に見ていきま
Highlights Here are some of the key changes in this release. Experimental TypeScript configuration files Arya Emami landed experimental support for TypeScript configuration files. Specifically, you can now use eslint.config.ts, eslint.config.mts, and eslint.config.cts files as your configuration files. Because this feature is experimental, you’ll need to use the unstable_ts_config feature flag: np
Have you updated your ESLint setup to version 9.x? This version includes many breaking changes. Two major changes you need to consider are: Node.js < v18.18.0 and v19 are no longer supported. Flat config is now the default and has some changes. Flat config ESLint’s new flat config system makes setting up easier by using just one JavaScript file (named eslint.config.js, eslint.config.mjs, or eslint
typescript-eslint is the tooling that enables standard JavaScript tools such as ESLint and Prettier to support TypeScript code. We've been working on a set of breaking changes and general features that we're excited to get in front of users. And now, we're excited to say that typescript-eslint v8 is released as stable! 🎉 We'd previously blogged about v8 in Announcing typescript-eslint v8 Beta. Th
When we released ESLint v9.0.0 in April, it was the first major release in 30 months and formally introduced the new configuration system. ESLint v9.0.0 also made some rule API changes to prepare the core for what’s coming next. After the release, we spent a lot of time creating compatibility utilities, a configuration migration tool, and a rule API transform utility to help the ecosystem move to
The v8 versions of typescript-eslint starting with v8.0.0-alpha.10 now support ESLint v9. Hooray! 🙌 If you still have problems with typescript-eslint and ESLint v9: Please make sure you're using typescript-eslint@8.0.0-alpha.10 or newer Go through our issue chooser to file a new issue reporting your problems That issue template includes searching for existing issues matching your problem - please
JSer.info #695 - Vitest v2.0.0-beta.5がリリースされました。 Release v2.0.0-beta.5 · vitest-dev/vitest --merge-reportsがカバレッジをサポート、Promiseベースのmockに対するAssertionの追加、ブラウザモードの改善などが含まれています。 VitestのBrowser Modeは、jsdomやhappy-domを置き換える形で、コンポーネントテストのための仕組みとして作られています。 開発中のVitest 2.0ではCommands APIとmodule mockingが追加されています。 次のIssueに、VitestのBrowser Modeの目的や方向性についての解説が書かれています。 Vitest Browser Mode · vitest-dev/vitest · Discus
We’ve heard you: One of the biggest reasons ESLint users haven’t upgraded to ESLint v9.x is migrating a configuration file seems difficult and complicated. Some plugins support flat config and the ESLint v9.x rule APIs and some don’t. Sometimes you need to use FlatCompat and sometimes you need to use the compatibility utilities. While we cover as much as we can in the migration guide, it can take
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