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ES2023 Features! Array find from last Hashbang Grammar Symbols as WeakMap keys Change array by copy Array find from last Array.prototype.findLast and Array.prototype.findLastIndex 📕 let nums = [5,4,3,2,1]; let lastEven = nums.findLast((num) => num % 2 === 0); // 2 let lastEvenIndex = nums.findLastIndex((num) => num % 2 === 0); // 3Hashbang Grammar #! for JS 📕 The first line of this script begins
VanJS: A 1.0kB Grab 'n Go Reactive UI Framework without React/JSX Enable everyone to build useful UI apps with a few lines of code, anywhere, any time, on any device.VanJS (abbreviated Vanilla JavaScript) is an ultra-lightweight, zero-dependency, and unopinionated Reactive UI framework based on pure vanilla JavaScript and DOM. Programming with VanJS feels like building React apps in a scripting la
Your Jest tests might be wrongMay 4, 2023 · 7 minute read · CommentsIs your Jest test suite failing you? You might not be using the testing framework’s full potential, especially when it comes to preventing state leakage between tests. The Jest settings clearMocks, resetMocks, restoreMocks, and resetModules are set to false by default. If you haven’t changed these defaults, your tests might be fra
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