Edit

EPSG:4326

Example of a map in EPSG:4326.

This example shows how to create a map in EPSG:4326.

index.html<!DOCTYPE html>
<html lang="en">
  <head>
    <title>EPSG:4326</title>
    <!-- The line below is only needed for old environments like Internet Explorer and Android 4.x -->
    <script src="https://cdn.polyfill.io/v2/polyfill.min.js?features=requestAnimationFrame,Element.prototype.classList,URL"></script>
    <style>
      .map {
        width: 100%;
        height:400px;
      }
    </style>
  </head>
  <body>
    <div id="map" class="map"></div>
    <script src="index.js"></script>
  </body>
</html>
index.jsimport 'ol/ol.css';
import Map from 'ol/Map';
import View from 'ol/View';
import {defaults as defaultControls, ScaleLine} from 'ol/control';
import TileLayer from 'ol/layer/Tile';
import TileWMS from 'ol/source/TileWMS';


var layers = [
  new TileLayer({
    source: new TileWMS({
      url: 'https://ahocevar.com/geoserver/wms',
      params: {
        'LAYERS': 'ne:NE1_HR_LC_SR_W_DR',
        'TILED': true
      }
    })
  })
];

var map = new Map({
  controls: defaultControls().extend([
    new ScaleLine({
      units: 'degrees'
    })
  ]),
  layers: layers,
  target: 'map',
  view: new View({
    projection: 'EPSG:4326',
    center: [0, 0],
    zoom: 2
  })
});
package.json{
  "name": "epsg-4326",
  "dependencies": {
    "ol": "6.1.1"
  },
  "devDependencies": {
    "parcel": "1.11.0"
  },
  "scripts": {
    "start": "parcel index.html",
    "build": "parcel build --experimental-scope-hoisting --public-url . index.html"
  }
}