npm basics

npm.basics.txt

# npm basics

- Install packages locally under node_modules directory:
```
npm install <package_name>
```

- Install packages globally, useful for applications:
```
sudo npm install -g <package_name>
```

- Install packages as dependencies: this will create a `package.json` file
```
npm install <package_name> --save
```

- Install packages as development dependencies, they will not be installed in production:
```
npm install <package_name> --save-dev
```

- Install packages as exact version dependencies
```
npm install <package_name> --save --save-exact
```