ch-nv (Change Node Version)

ch-nv — A CLI tool to temporarily use a specific Node.js version bundled in your package.

This lets you execute a script with your own bundled node (without needing to install nvm or n).

🚀 Installation

Install globally:

npm install -g ch-nv

🔹 Project structure (after installation)

ch-vn/
 ├─ ch-nv.js
 ├─ node12.js
 ├─ node14.js
 ├─ node16.js
 ├─ node20.js
 ├─ npm12.js
 ├─ npm14.js
 ├─ npm16.js
 ├─ npm20.js
 ├─ npx12.js
 ├─ npx14.js
 ├─ npx16.js
 ├─ npx20.js
 ├─ node12/
 ├─ node14/
 ├─ node16/
 ├─ node20/
 ├─ package.json

📝 Usage

ch-nv [options] <your command or file>

node12 script.js
node14 script.js
node16 script.js
node20 script.js

npm12 install
npm14 install
npm16 install
npm20 install

npx12 create-react-app
npx14 create-react-app
npx16 create-react-app
npx20 create-react-app

🔹 Examples:

➥ Run server.js with Node 14:

ch-nv -14 server.js

➥ Run index.js with Node 20 (default if not specified):

ch-nv index.js

➥ Display package version:

ch-nv -v

➥ Display help:

ch-nv -h

🕹 CLI options:

| Flag | Meaning | | ----- | ---------------------------------- | | -v | Prints the ch-nv package version | | -h | Shows help messages | | -12 | Uses Node 12 | | -14 | Uses Node 14 | | -16 | Uses Node 16 | | -20 | Uses Node 20 (default) |

🔹 How it works

➥ ch-nv prepends the specified node directory to your PATH. ➥ It then executes your script with that Node executable.

➥ The directory must be present alongside ch-nv.js.

🔹 Notes

✅ ch-nv is designed to work only on Windows.
✅ The directory structure must match: ✅ Each directory should have a node executable and related files.

📝 license

MIT