bun一个现代JavaScript运行时

先上结论：官网的方法行不通

curl https://bun.sh/install | bash

• Bun：是一个现代JavaScript运行时，专注于性能与开发者体验。它不仅是一个快速的JavaScript执行环境，还提供了构建、测试和调试JavaScript和TypeScript代码的工具。Bun支持Windows、Linux和macOS操作系统，但在Windows桌面环境下安装时可能需要通过WSL（Windows Subsystem for Linux）来实现。

Bun is a fast JavaScript
runtime

Develop, test, run, and bundle JavaScript & TypeScript projects—all with Bun. Bun is an all-in-one JavaScript runtime & toolkit designed for speed, complete with a bundler, test runner, and Node.js-compatible package manager.

安装Bun的时候颇受了一些周折

 按照官网安装bun

curl -fsSL https://bun.sh/install | bash

安装bun 失败，主要是github有问题。

尝试手工npm 安装bun

sudo npm install -g bun 

安装成了。

Bun使用案例

使用起来也很方便，比如server

服务器

const server = Bun.serve({port: 3000,fetch(request) {return new Response("Welcome to Bun!");},
});console.log(`Listening on localhost:${server.port}`);

读写文件

const file = Bun.file(import.meta.dir + '/package.json'); // BunFileconst pkg = await file.json(); // BunFile extends Blob
pkg.name = 'my-package';
pkg.version = '1.0.0';await Bun.write(file, JSON.stringify(pkg, null, 2));

流读取

const response = await fetch("https://bun.sh");await Bun.readableStreamToArrayBuffer(response.body); // => ArrayBuffer
await Bun.readableStreamToBlob(response.body); // => Blob
await Bun.readableStreamToJSON(response.body); // => object
await Bun.readableStreamToText(response.body); // => string
await Bun.readableStreamToArray(response.body); // => unknown[]

调用函数

import { dlopen, FFIType, suffix } from "bun:ffi";// `suffix` is either "dylib", "so", or "dll" depending on the platform
const path = `libsqlite3.${suffix}`;const {symbols: {sqlite3_libversion, // the function to call},
} = dlopen(path, {sqlite3_libversion: {args: [], // no argumentsreturns: FFIType.cstring, // returns a string},
});console.log(`SQLite 3 version: ${sqlite3_libversion()}`);