How do I install all the requirements with npm?

Question

I would like to clone https://github.com/tstringer/create-react-app-with-redux and start a new project. I ran npm start and then ran npm install for each module not present, but there are many of them. Is there a way to install all the requirements? Something like pip install -r requirements.txt in Python.

Thanks, Uri.

Answer 1

Just run npm install without arguments. It will resolve the required dependencies from the package.json file.

Answer 2

It's simple.

If you want to install all the node_modules from the package.json file you simply put: npm install in terminal (on the same directory where the package.json exists) and it would install all the node modules in the folder called node_modules.

Generally, the node_modules folder is not uploaded in a git (by putting restriction at .gitignore) because it is essentially the same folders or packages that one would have to install, *hence installing it from package.json is simpler and it saves the internet bandwidth and time.

Even you want to save something in the package.json while you are installing any npm package you can simply put npm install --save your-package-name and it would automatically save your package in the .package.json file and you can install the same file, even after you delete the node_modules folder using the same command.

Answer 3

Better yet, if you want to save yourself a lot of time use yarn install instead of npm install (https://yarnpkg.com/en/). It is much faster because it caches everything and operates in parallel (see https://www.sitepoint.com/yarn-vs-npm/ for a good comparison).