Those familiar with web development will find the structure of an Ionic app straightforward. At its core, it’s just a web page running in an native app shell! That means we can use any kind of HTML, CSS, and Javascript we want.
The easiest way to use Ionic is via its [CLI](https://ionicframework.com/docs/cli/). Those familiar with [Angular's CLI](https://cli.angular.io/) should see some resemblances.
The latest release of Ionic is [Ionic 4](https://blog.ionicframework.com/announcing-ionic-4-beta/). Having completly rewritten all their Angular components as web compoents, Ionic is now platform agnostic with the ability to use Anguar, Vue, React, or plain JavaScript.
To use Ionic 4 make sure you have the latest version of the Ionic CLI:
```shell
npm i -g ionic
```
and use the type arguments
```shell
ionic start MyFirstIonic4App tabs --type=angular
cd MyFirstIonic4App
ionic serve
```
Ionic 4's CLI now uses Angular's CLI for its building and routing. For other frameworks see the quickstarts: