Bun is a burgeoning JavaScript runtime in beta, competing with Node.js and Deno. Designed for speed and simplicity, it includes features such as a bundler, transpiler, package manager, and NPM client. The project aims to optimize JavaScript performance beyond browsers, claiming support for 90% of Node-API functions and native implementation of numerous web APIs. Written in Zig and using the JavaScriptCore engine, Bun's architecture focuses on lower memory control and a streamlined development experience, positioning it as an effective tool for modern web development.
Move over, Node.js and Deno. A potential competitor is emerging in the JavaScript/ TypeScript runtime space, called Bun.
The goal of the project is to "run most of the world's JavaScript outside of browsers," providing performance and complexity enhancements to future infrastructure.
Written in the Zig low-level programming language, the Bun runtime uses the JavaScriptCore engine from the WebKit project, which Bun developers said tends to perform faster than traditional choices like V8.
To make Bun fast, the developers spent time profiling, benchmarking, and optimizing. Zig's low-level control over memory and transparent control flow make it simpler to write fast software.
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