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 the production dependencies also which I do not want.
npm install --dev
npm install --only=dev
npm install --only-dev
I cannot think of any more ways of telling the npm to install the devDependencies alone. :(
Check the NPM docs for install:
With the
--productionflag (or when theNODE_ENVenvironment variable is set to production), npm will not install modules listed indevDependencies.The
--only={prod[uction]|dev[elopment]}argument will cause either only devDependencies or only non-devDependencies to be installed regardless of the NODE_ENV.
Have you tried the following?
npm install --only=dev
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.
--devoption is deprecated. Use--only=devinstead. – Andriy Leshchuk--production=falseinstead of the above. – devspeter--production=falsedoes not solve the OP question: it installs dependencies and devDependencies, not ONLY devDependencies. – Michael K