swc-jit

0.2.0 verified Fri May 01 auth: no javascript maintenance

swc-jit v0.2.0 provides a just-in-time transpiler for Node.js using the experimental loader API, allowing TypeScript files to be executed directly without precompilation. It integrates with SWC for fast transpilation and supports source maps for debugging. The package is designed as a lighter alternative to ts-node, leveraging SWC's speed. However, it relies on Node's experimental loaders, which may change across Node versions. The package has no recent updates and may be considered in maintenance mode.

Common errors

error Error [ERR_MODULE_NOT_FOUND]: Cannot find module 'swc-jit' ↓

cause Package not installed or not in node_modules.

fix

Run npm install swc-jit in the project directory.

error TypeError [ERR_INVALID_ARG_TYPE]: The "url" argument must be of type string ↓

cause Node version too old or incompatible loader hook.

fix

Use Node >=12.17.0 and ensure --experimental-loader is correctly specified.

Warnings

breaking Node --experimental-loader flag is experimental and may change or be removed in future Node versions. ↓

fix Use a stable alternative like ts-node or @swc-node/register for production.

deprecated Package has not been updated since 2021; may have compatibility issues with newer Node or SWC versions. ↓

fix Consider using @swc-node/register or tsx as maintained alternatives.

gotcha Source maps require both --experimental-loader and --enable-source-maps flags. ↓

fix Always pass both flags: node --experimental-loader swc-jit --enable-source-maps index.ts

Install

npm install swc-jit

yarn add swc-jit

pnpm add swc-jit

Imports

default

wrong

ts-node or other loaders

correct

node --experimental-loader swc-jit --enable-source-maps index.ts

CLI usage, not programmatic import

Quickstart

Installs and runs a TypeScript file directly using Node's experimental loader with source maps.

npm install swc-jit
node --experimental-loader swc-jit --enable-source-maps index.ts