## Install
Planck can be installed or downloaded from NPM or a CDN.
#### NPM
First install the package.
```sh
npm install planck
```
Then import the library in your code:
```js
import { World } from 'planck';
const world = new World();
```
You can alternatively import planck namespace to access all classes:
```js
import planck from 'planck';
const world = new planck.World();
```
To use testbed you need to import `planck/with-testbed` instead:
```js
import { World, Testbed } from 'planck/with-testbed';
const world = new World();
const testbed = Testbed.mount();
testbed.start(world);
```
#### Script tag
Planck.js is available on [jsDelivr](https://www.jsdelivr.com/package/npm/planck), [cdnjs](https://cdnjs.com/libraries/planck), and [unpkg](https://unpkg.com/planck/).
```html
```
To use testbed you need to use `planck-with-testbed.min.js` instead:
```html
```