How to install only "devDependencies" using npm

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 --production flag (or when the NODE_ENV environment variable is set to production), npm will not install modules listed in devDependencies.

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

npm i -D

An optional short version.

npm install thePackageName --save-dev

This works fine for me.

As of npm version 7.10.0 you can omit certain types of dependencies, however you cannot omit "the" dependencies (production) anymore. That's why there is no solution for this problem anymore.

The --only=dev option is no longer supported. To do the dev dependency install run npm install --production=false