Bun.js has been making waves in the JavaScript community, with some even referring to it as a potential "Node.js killer"123. But what exactly is Bun.js, and why is it garnering so much attention? Bun.js is a new JavaScript runtime that is designed to be a drop-in replacement for current JavaScript & TypeScript apps or scripts1. It's been described as the "Swiss knife" of the JavaScript world, as it combines the functionalities of a bundler, transpiler, and package manager into a single tool1. One of the key selling points of Bun.js is its performance. It's been reported to significantly outperform Node.js in terms of speed12. For instance, when bundling a basic Create React App template for production, Bun.js reportedly completes the task in just 8ms, compared to around 6 seconds with Node.js1. Moreover, when used as a backend with Express, Bun.js has been found to handle requests twice as fast as Node.js1. However, it's important to note that Bun.js is still in its early stages. While it strives to be as backward compatible as possible with Node.js, it's not 100% there yet1. Not all Node.js core modules are implemented in Bun.js at the moment1. In conclusion, while Bun.js shows promise with its impressive speed and features, it's still too early to say whether it will "kill" Node.js. As with any new technology, it will need time to mature and prove its reliability and usefulness in a variety of real-world
applications.
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