swc node

swc-node

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无需node-gyp和安装后脚本的快速TypeScript/JavaScript转换器。

用法

使用节点运行 TypeScript，无需编译或类型检查：

npm i -D @swc-node/register
node -r @swc-node/register script.ts
node --import @swc-node/register/esm-register script.ts # for esm project with node>=20.6
node --loader @swc-node/register/esm script.ts # for esm project with node<=20.5, deprecated

将--enable-source-maps传递给 esm 项目的节点

当您想要加载 .swcrc 文件时，设置环境变量 SWCRC=true

SWCRC=true node -r @swc-node/register script.ts

#!/usr/bin/env -S node --import @swc-node/register/esm-register

// your code

使用 shebang 运行，添加TS_NODE_PROJECT=null ( #!/usr/bin/env TS_NODE_PROJECT=null node --import @swc-node/register/esm-register ) 以使用ignore tsconfig.json

@swc-node/核心

最快的TypeScript转换器。

详细信息：@swc-node/core

基准

将 RxJS AjaxObservable.ts转换为 ES2015 和 CommonJS JavaScript 。基准代码：bench

硬件信息：

 Model Name: MacBook Pro
Model Identifier: MacBookPro15,1
Processor Name: 6-Core Intel Core i7
Processor Speed: 2.6 GHz
Number of Processors: 1
Total Number of Cores: 6
L2 Cache (per Core): 256 KB
L3 Cache: 12 MB
Hyper-Threading Technology: Enabled
Memory: 16 GB

transformSync

esbuild x 510 ops/sec ±1.28% (88 runs sampled)
@swc-node/core x 438 ops/sec ±1.00% (88 runs sampled)
typescript x 28.83 ops/sec ±10.20% (52 runs sampled)
babel x 24.21 ops/sec ±10.66% (46 runs sampled)
Transform rxjs/AjaxObservable.ts benchmark bench suite: Fastest is esbuild

平行transform

UV_THREADPOOL_SIZE=11 yarn bench

@swc-node/core x 1,253 ops/sec ±0.90% (75 runs sampled)
esbuild x 914 ops/sec ±1.31% (77 runs sampled)
Transform rxjs/AjaxObservable.ts parallel benchmark bench suite: Fastest is @swc-node/core

yarn bench

@swc-node/core x 1,123 ops/sec ±0.95% (77 runs sampled)
esbuild x 847 ops/sec ±3.74% (71 runs sampled)
Transform rxjs/AjaxObservable.ts parallel benchmark bench suite: Fastest is @swc-node/core

@swc-node/笑话

最快的笑话TypeScript转换器。

详细信息：@swc-node/jest

性能一览

在纯TypeScript项目中测试，编译目标是ES2018 。使用npx jest --no-cache运行， ts-jest配置为isolatedModules: true

开玩笑

 Test Suites: 49 passed, 49 total
Tests:       254 passed, 254 total
Snapshots:   53 passed, 53 total
Time:        54.631 s
Ran all test suites.
  Done in 62.71s.

@swc-node/笑话

 Test Suites: 49 passed, 49 total
Tests:       254 passed, 254 total
Snapshots:   53 passed, 53 total
Time:        10.511 s
Ran all test suites.
  Done in 14.34s.

@swc-节点/注册

更快的ts-node/register/transpile-only替代方案。

详细信息：@swc-node/register

发展

安装依赖项

• pnpm i

构建和测试

• pnpm build

• pnpm test

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