npm (Node Package Manager) is a command line tool and helps organizes and install packages in our JS project.
* Node is a JS runtime, to run JS locally in your computer instead of in a browser.
npm is automatically installed along with Node.js so to check if you already have it in you computer run:
If a version doesn’t appear you can use the Node Version Manager to install Node.js.
To check the version of npm:
To update it:
npm install --global npm
npm works with the package.json file and has a command to create it:
The package.json file includes info about the project and tells to npm which packages are required for the project. When we run
npm install in a project with a package.json file, npm downloads and install all packages listed in the file from npmjs.com.
If you are working in a local environment running
npm install creates the folder node_modules, with all the downloaded packages.
To install more packages than the listed in the package.json, run:
npm install <name_of_the_package>