JSFiddle - React, Tailwind, and code Playground

by astanislaus

HTML

<link rel="stylesheet" href="https://openlayers.org/en/v3.20.1/css/ol.css">
<script src="https://openlayers.org/en/v3.20.1/build/ol.js"></script>
<div id="map" class="map"></div>
<label for="speed">
  speed:&nbsp;
  <input id="speed" type="range" min="10" max="999" step="10" value="60">
</label>
<button id="start-animation">Start Animation</button>

JavaScript

//var locations = [[53.44241609, 6.84913974],[53.44241894, 6.84913726], [53.44242156, 6.84913385], [53.44242473, 6.84913076], [53.44242859, 6.84912721], [53.44243324, 6.84912446], [53.44243724, 6.84912303], [53.44243994, 6.84912206], [53.44244199, 6.84911994], [53.44244474, 6.84911928], [53.44244757, 6.8491193], [53.44245181, 6.84911968], [53.44245596, 6.84912085], [53.44246139, 6.84912072], [53.4424669, 6.84912142], [53.44247222, 6.84912279], [53.4424778, 6.84912454], [53.44248644, 6.84912644], [53.44249062, 6.84912761], [53.44249409, 6.84913057], [53.44249746, 6.84913362], [53.44250197, 6.84913592], [53.44250901, 6.84913629], [53.44251198, 6.84913792], [53.44251293, 6.84913988], [53.44251458, 6.84914126], [53.44251596, 6.8491434], [53.44251778, 6.84914727], [53.44251988, 6.8491501], [53.44252248, 6.8491531], [53.44252517, 6.84915473], [53.44252316, 6.84915181], [53.44252377, 6.84915124], [53.4425233, 6.84914949], [53.44252341, 6.84914848], [53.44252276, 6.84914827], [53.44252397, 6.84914868], [53.4425216, 6.84914477], [53.44252001, 6.84914287], [53.44252107, 6.84914273], [53.44251986, 6.84913869], [53.44251841, 6.84913463], [53.44251482, 6.84912822], [53.44251525, 6.84912649], [53.4425148, 6.84912465], [53.44251483, 6.84912049], [53.44251625, 6.84911749], [53.44251677, 6.84911403], [53.4425187, 6.84910978], [53.44252028, 6.84910694], [53.44252218, 6.84910622], [53.44252457, 6.84910649], [53.44252783, 6.84910729], [53.44253168, 6.84910888], [53.44253668, 6.84910943], [53.44254088, 6.84910976], [53.44254363, 6.84910898], [53.44254612, 6.84910996], [53.44254803, 6.84910946], [53.44255004, 6.84910945], [53.44255416, 6.84910766], [53.44256019, 6.84910343], [53.44256469, 6.84909908], [53.44256753, 6.84909764], [53.44257106, 6.84909639], [53.44257482, 6.84909654], [53.44257861, 6.84909769]];
var locations = [
[51.658665, -1.92788],  // Mark : 0
[51.657782, -1.929267],  // Mark : 2
[51.658665, -1.92788],  // Mark : 2
[51.659887, -1.927568],  // Mark : 3
[51.660719,...