How do you reinstall an app's dependencies using npm?

Question

Is there a simple way to reinstall all packages that my app depends on (i.e. they are in my apps node_modules folder)?

Answer 1

For Windows you can use

(if exist node_modules rmdir node_modules /q /s) && npm install

which removes node_modules directory and performs npm install then. Removal before install assures that all packages are reinstalled.

Answer 2

Follow this step to re install node modules and update them

works even if node_modules folder does not exist. now execute the following command synchronously. you can also use "npm update" but I think this'd preferred way

npm outdated // not necessary to run this command, but this will show outdated dependencies

npm install -g npm-check-updates // to install the "ncu" package

ncu -u --packageFile=package.json // to update dependencies version in package.json...don't run this command if you don't need to update the version

npm install: will install dependencies in your package.json file.

if you're okay with the version of your dependencies in your package.json file, no need to follow those steps just run

 npm install

Answer 3

The easiest way that I can see is delete node_modules folder and execute npm install.

Answer 4

Delete node_module and re-install again by command

rm -rf node_modules && npm i