---
title: "Render world copies | JavaScript maps SDK"
description: "Toggle rendering multiple copies of the world."
---
> For AI agents: a documentation index is available at [/llms.txt](https://docs.maptiler.com/llms.txt). Markdown versions of all pages are available by appending .md to any URL.
# Render world copies
Toggle between rendering a single world and multiple copies of the world using [`setRenderWorldCopies`](https://docs.maptiler.com/sdk-js/api/map/#map#setrenderworldcopies). If `true`, multiple copies of the world will be rendered side by side beyond -180 and 180 degrees longitude.
### NPM module setup
```bash
npm install --save @maptiler/sdk
```
#### main.js
```js
import { Map, MapStyle, config } from '@maptiler/sdk';
import '@maptiler/sdk/dist/maptiler-sdk.css';
config.apiKey = 'YOUR_MAPTILER_API_KEY_HERE';
const map = new Map({
container: 'map', // container id
style: MapStyle.STREETS,
center: [179, 0], // starting position [lng, lat]
zoom: 0.01 // starting zoom
});
const renderOptions = document.getElementById('menu');
const inputs = renderOptions.getElementsByTagName('input');
function switchRenderOption(option) {
const status = option.target.id;
map.setRenderWorldCopies(status === 'true');
}
for (let i = 0; i < inputs.length; i++) {
inputs[i].onclick = switchRenderOption;
}
```
#### index.html
```html
Render world copies | NPM example
```
## Related examples
### [Display line that crosses 180th meridian](https://docs.maptiler.com/sdk-js/examples/line-across-180th-meridian/)
Examples
Draw a line across the 180th meridian using a GeoJSON source.
### [Restrict map panning to an area](https://docs.maptiler.com/sdk-js/examples/restrict-bounds/)
Examples
Prevent map panning by setting maximum bounds.
### [Center map by visitor’s country IP](https://docs.maptiler.com/sdk-js/examples/ip-country-map/)
Tutorials
This tutorial shows how to center map based on the visitor’s country bounds using the MapTiler Geolocation API.