> For the complete documentation index, see [llms.txt](https://docs.mapbox.com/mapbox-gl-js/ja/llms.txt)

# Display a popup

Add a [`Popup`](https://docs.mapbox.com/mapbox-gl-js/ja/api/markers/#popup) to the map.

> Example code:

**JavaScript**

```html
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Display a popup</title>
<meta name="viewport" content="initial-scale=1,maximum-scale=1,user-scalable=no">
<link href="https://api.mapbox.com/mapbox-gl-js/v3.29.0/mapbox-gl.css" rel="stylesheet">
<script src="https://api.mapbox.com/mapbox-gl-js/v3.29.0/mapbox-gl.js"></script>
<style>
body { margin: 0; padding: 0; }
#map { position: absolute; top: 0; bottom: 0; width: 100%; }
</style>
</head>
<body>
<div id="map"></div>
<script>
    const map = new mapboxgl.Map({
        // TO MAKE THE MAP APPEAR YOU MUST
        // ADD YOUR ACCESS TOKEN FROM
        // https://account.mapbox.com
        accessToken: 'YOUR_MAPBOX_ACCESS_TOKEN',
        container: 'map',
        // Choose from Mapbox's core styles, or make your own style with Mapbox Studio
        style: 'mapbox://styles/mapbox/standard',
        center: [-96, 37.8],
        zoom: 3
    });

    const popup = new mapboxgl.Popup({ closeOnClick: false })
        .setLngLat([-96, 37.8])
        .setHTML('<h1>Hello World!</h1>')
        .addTo(map);
</script>

</body>
</html>
```

**React**

```jsx
import React, { useEffect, useRef } from 'react';
import * as mapboxgl from 'mapbox-gl/esm';

import 'mapbox-gl/dist/mapbox-gl.css';

const MapboxExample = () => {
  const mapContainerRef = useRef();
  const mapRef = useRef();

  useEffect(() => {
    mapRef.current = new mapboxgl.Map({
      // TO MAKE THE MAP APPEAR YOU MUST
      // ADD YOUR ACCESS TOKEN FROM
      // https://account.mapbox.com
      accessToken: 'YOUR_MAPBOX_ACCESS_TOKEN',
      container: mapContainerRef.current,
      style: 'mapbox://styles/mapbox/standard',
      center: [-96, 37.8],
      zoom: 3
    });

    new mapboxgl.Popup({ closeOnClick: false })
      .setLngLat([-96, 37.8])
      .setHTML('<h1>Hello World!</h1>')
      .addTo(mapRef.current);
  }, []);

  return <div ref={mapContainerRef} id="map" style={{ height: '100%' }}></div>;
};

export default MapboxExample;
```