How to install only “devDependencies” using npm

Question

I am trying to install ONLY the \"devDependencies\" listed in my package.json file. But none of the following commands work as I expect. All of the following commands install th

Answer 1

Running npm install, It will install all dependencies under devDependencies` or dependencies.

For installing and save packages as dev dependencies in package.json, npm install package_name --save-dev or pass option -D

For installing all packages under devDependencies, npm install --only=dev

For installing and save packages as prod or only dependencies in package.json, npm install package_name --save-prod or pass option -P or npm install package_name

For installing all packages under dependencies or Prod dependencies, set Environment variable NODE_ENV=production or pass it with the command NODE_ENV=production npm install or npm install --only=prod

Instead of using install in npm command like npm install you can just use i like npm i, short of install.

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