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Collecting Test Coverage in Playwright
Test coverage collection is a good tool to evaluate how much of your code is being tested. It can help you identify untested parts of your codebase and improve your test suite. I recently had to implement test coverage collection for a Playwright test suite.
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Find and Replace with Regex Groups in VS Code
I sometimes need to search and replace across some code, but with parts of the search left untouched. Every time, I forget how to do it in VS Code.
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Handling Complex React State with usePatchedState
usePatchedState is a nice hook to simplify complex state management in React with TypeScript. Instead of many indivual, atomic useState calls, you define your initial state and then get a “patch” function that you use to edit parts of the state granularly.
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Custom Prettier Options for Markdown Code Blocks
A Prettier feature that I love is that it formats files, but also code blocks in Markdown files. I wanted to customize the maximum line length and the tab size for the code in my articles, but not have the same option applied to the rest of my codebase.
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Propagating Errors with Redux Toolkit
I recently started migrating my company’s codebase to Redux Toolkit, after many years using bare Redux with manually (painfully) written action creators and reducers. After some time, I realized that our error handling code was malfunctioning for async thunks.
