JSFiddle - React, Tailwind, and code Playground

HTML

<script src="https://api.tiles.mapbox.com/mapbox.js/v1.6.2/mapbox.js"></script>
<link rel="stylesheet" href="https://api.tiles.mapbox.com/mapbox.js/v1.6.4/mapbox.css">
<div id="map" style="height:400px;"></div>

JavaScript

var map = L.mapbox.map('map', 'icracked.map-0t4ttb1b', []);
var featureGroup = L.featureGroup().addTo(map);
L.circle([7, 0], 500000).addTo(featureGroup);

var drawControl = new L.Control.Draw({
  edit: {
    featureGroup: featureGroup
  }
}).addTo(map);