tsr-node

0.1.1 verified Fri May 01 auth: no javascript

A minimal TypeScript runner for Node.js (version 0.1.1), built on esbuild for fast transpilation. Unlike ts-node which uses the TypeScript compiler (tsc), tsr leverages esbuild's speed for instant execution. Ideal for quick scripts and development, but lacks type-checking. Release cadence is unknown.

Common errors

error tsr: command not found ↓

cause Package not installed or not in PATH

fix

Run npm i -g tsr-node.

error Error: Cannot find module 'esbuild' ↓

cause Missing esbuild dependency (it's a peer dependency?)

fix

Install esbuild: npm i -g esbuild or reinstall tsr-node.

Warnings

gotcha No type-checking at runtime ↓

fix Run `tsc --noEmit` separately for type checks.

gotcha Uses esbuild, which may not support all TypeScript features like decorators or const enums ↓

fix Check esbuild's compatibility for your features.

gotcha Global install may conflict with other Node.js tools ↓

fix Use `npx tsr-node hello.ts` to avoid global installation.

Install

npm install tsr-node

yarn add tsr-node

pnpm add tsr-node

Imports

default
wrong
```
const tsr = require('tsr-node')
```
correct
```
import {} from 'tsr-node'
```
CLI tool; no programmatic API. Used via command line.

Quickstart

Install the CLI globally and run a TypeScript file directly.

# install
npm i -g tsr-node
# create a file
echo 'const greet = (name: string) => `Hello, ${name}!`; console.log(greet("World"));' > hello.ts
# run
tsr hello.ts