🎻🎻 A first step to becoming an npm virtuoso

npm i express

npm i --save-dev express
or
npm i -D express

npm i express -g
```


---
removing a package


```
npm uninstall express
```


(add `-g` to install / uninstall globally)

## The not so obvious

get outdated packages


```
npm outdated
```




show all installed packages


```
npm list
```



(`ls`, `la` and `ll` can be used as aliases for `list`)


show all globally installed packages


```
npm list --global
```



you should probably use it like this, otherwise the output will be quite long, because this also shows the dependencies of your globally installed packages.



```
npm list --global --depth=0
```



visit the package page on npmjs.com



```
npm home <package>
```




## Getting information about packages

show which version is used and which packages are requiring the specified module


```
npm ls express
```



show all available versions, description, contributers of a package


```
npm view express
```




## Local Development with packages aka Linking

in my-module (will later on be used in the host project)


```
npm link
```



in the host project (which is going to use my-module)


```
npm link my-module
```



If you link a package, it'll be automatically updated in the target application

or just install the local module via the file system


```
npm install ../my-module
```



show all globally linked modules


```
npm ls -g --depth=0 --link=true
```



## Creating a local package



```
npm init
```



or



```
npm init -y 
```



to answer all the questions during the installation process with yes.

---

Do you have some useful npm commands, that you are using on a regular basis? Or some lifesavers? Please add them in the comments! 

Thanks for reading!