# npm commands

Which command creates the package.json file interactively?

|                    | yes  | no   |
| ------------------ | ---- | ---- |
| `npm install`      | \[ ] | \[x] |
| `npm init`         | \[x] | \[ ] |
| `npm package.json` | \[ ] | \[x] |

> If you already have a package.json file, it'll read that first, and default to the options in there.

How do you install a package and save it as a dependency in the package.json file?

|                                     | yes  | no   |
| ----------------------------------- | ---- | ---- |
| `npm install <package name> --save` | \[x] | \[ ] |
| `npm install <package name> --s`    | \[ ] | \[x] |
| `npm install <package name> -S`     | \[x] | \[ ] |

> When uninstalling a package "save" flag will also update the dependency to package.json file: `npm uninstall <package name> --save`

How do you list packages?

|               | yes  | no   |
| ------------- | ---- | ---- |
| `npm list`    | \[x] | \[ ] |
| `npm ls`      | \[x] | \[ ] |
| `npm -l`      | \[ ] | \[x] |
| `npm list -g` | \[x] | \[ ] |

> Adding the "g" flag after "list" or "ls" will show you globally installed packages: `npm list -g` or `npm ls -g`