Basic map with Leaflet.js and OpenStreetMap

Leaflet is an an open-source JavaScript library for mobile-friendly interactive maps http://leafletjs.com/ Here data is provided by OpenStreetMap

by megaadriano

HTML

<script src="https://cdnjs.cloudflare.com/ajax/libs/leaflet/1.0.0-beta.2.rc.2/leaflet.js"></script>
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/leaflet/1.0.0-beta.2.rc.2/leaflet.css">
<div id="map"></div>

CSS

#map {
  height: 400px;
}

JavaScript

// center of the map
var center = [-23.9475514, -46.3389311];

// Create the map
var map = L.map('map').setView(center, 12);

// Set up the OSM layer
L.tileLayer(
  'http://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png', {
    maxZoom: 50
  }).addTo(map);

// add a marker in the given location
var greenIcon = new L.Icon({
  iconUrl: 'https://cdn.rawgit.com/pointhi/leaflet-color-markers/master/img/marker-icon-red.png',
  shadowUrl: 'https://cdnjs.cloudflare.com/ajax/libs/leaflet/0.7.7/images/marker-shadow.png',
  iconSize: [20, 30],
  iconAnchor: [12, 41],
  popupAnchor: [1, -34],
  shadowSize: [41, 41]
});
var marker = L.marker(center,{icon: greenIcon}).addTo(map);
marker.on('click',function(obj){
	alert('clicou no marcador' + obj)
})