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May 28, 2024 Announcing Rspack 0.7# Rspack v0.7 has been released! This is the last minor release before the Rspack v1.0. After this, the Rspack team will focus on the development of v1.0 and aim to launch the Rspack v1.0 alpha version soon. Notable changes in Rspack v0.7: Support for Lazy Compilation: Significantly improves the dev startup performance of large applications by compiling on demand.
This release includes support for new Flow features such as component and hook declarations. All of these features were implemented by the engineers on the Flow team, thank you. If you appreciate Prettier and would like to support our work, please consider sponsoring us directly via our OpenCollective or by sponsoring the projects we depend on, such as typescript-eslint, remark, and Babel. Thank y
In this post I’ll walk through the full implementation of a Virtual DOM in a bit over 200 lines of JavaScript. The result is a full-featured and sufficiently performant virtual DOM library (demos). It’s available on NPM as the smvc package. The main goal is to illustrate the fundamental technique behind tools like React. React, Vue and the Elm language all simplify the creation of interactive web
This post details CVE-2024-4367, a vulnerability in PDF.js found by Codean Labs. PDF.js is a JavaScript-based PDF viewer maintained by Mozilla. This bug allows an attacker to execute arbitrary JavaScript code as soon as a malicious PDF file is opened. This affects all Firefox users (<126) because PDF.js is used by Firefox to show PDF files, but also seriously impacts many web- and Electron-based a
Level up your testing skills by learning directly from me! Read more Honestly, I'd never thought I'd be writing about this, but the matter of patching globals turned out to be one of those topics that a lot of engineers seem to misunderstand. Most of us don't do monkey-patching, and even fewer stay around those implementations long enough to witness their impact. All the more reason to talk about
This release doesn't contain any deliberately-breaking changes. However, it contains a very complex new feature and while all of esbuild's tests pass, I would not be surprised if an important edge case turns out to be broken. So I'm releasing this as a breaking change release to avoid causing any trouble. As usual, make sure to test your code when you upgrade. Implement the JavaScript decorators p
This guide is open source, please go ⭐️ it on GitHub and make suggestions/edits there! https://github.com/FrontendMasters/front-end-handbook-2024 1. Overview of Field of Work This section provides an overview of the field of front-end development/engineering. 1.1 — What is a (Frontend||UI||UX) Developer/Engineer? A front-end developer/engineer uses Web Platform Technologies —namely HTML, CSS, and
It's happening! One of the features I am most hyped about has just landed across all modern browsers and is officially a part of Baseline 2024. And this feature is the Popover API. Popover provides so many awesome primitives and developer affordances for building layered interfaces like tooltips, menus, teaching UIs, and more. Some quick highlights of popover capabilities include: Promotion to the
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