Argos · Visual Regression for Playwright & StorybookStop visual regressions, not releases.Argos detects unintended visual changes in your UI, helping teams maintain high product quality as they ship faster.
testing-library でユーザの気持ちになって書くフロントエンドのテスト
TL;DR フロントエンドのテストが壊れやすく要因の一つは、ユーザがどのようにソフトウェアを使うかをクエリに反映できていないからかも testing-library はソフトウェアを使うユーザの気持ちを反映させやすいようにクエリの優先度をつけていて、それに従うほうがいい 優先度の低いクエリも役に立つことがある 運用しているアクセシビリティなどの実装のガイドラインに沿うようなテストを作るとき アクセシビリティの低い実装をリファクタリングするためのテストを作るとき はじめに フロントエンドのテストに用いるツールとして testing-library が知られています。testing-library は提供しているクエリに優先度をつけています。この優先度は、どういう基準でつけられているのでしょうか。 この記事では、 testing-library のガイドを読みながら、クエリの優先度を「ユーザの
Experiments with the JavaScript Garbage Collector
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GitHub - wstaeblein/texthighlighter: Vanilla JS class to highlight search results in a textarea while maintaining the area's functionality
Vanilla JS class to highlight search results in a textarea while maintaining the area's functionality. Since one can't style the text in a textarea, as it is not HTML, this class comes to the rescue allowing you to highlight any text in a textarea. Such as in search results. No dependencies. No configuration. Just instantiate the class and call a method. Can be used in as many textareas as needed,
You Don't Need Rails to Start Using Hotwire
Update: I originally published this post few months ago, and it only covered Turbo Drive and Turbo Frames then, with a static site. I've since had a bunch of conversations with people working with other tech stacks (Rust, PHP, and Go) wanting to integrate Hotwire into their front-ends, and everyone kept asking about Turbo Streams, since it needs a back-end server. So I've updated the post to build
Sandboxing JavaScript Code
I've been enjoying playing around on Val Town lately. Val Town can be described a few ways; a cloud scripting site, a runnable github gists, or end-programmer programming. I first came across it in a Show HN thread. A "val" is a JavaScript/TypeScript function or value that runs on our servers. We aim to get you from idea to running code in seconds: type code, run it, get its API endpoint, schedule
JavaScript Import maps, Part 1: Introduction
We recently shipped import maps in Firefox 108 and this article is the first in a series that describes what they are and the problems they can solve. In this first article, we will go through the background and basics of import maps and follow up with a second article explaining more details of import maps. Background: JavaScript Modules If you don’t know JavaScript modules, you can read the MDN
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GitHub - antonmedv/finder: CSS Selector Generator 🗺
Release v7.0.0-rc.0 · storybookjs/storybook
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https://blog.sentry.io/2023/02/23/sentrys-frontend-tests-migrating-from-enzyme-to-react-testing-library/
Release 7.2.0 · google/zx
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GitHub - bombshell-dev/clack: Effortlessly build beautiful command-line apps
