JSFiddle - React, Tailwind, and code Playground

by Dinesh Patra

HTML

<div id="map"></div>
<!-- Replace the value of the key parameter with your own API key. -->
<script async defer src="https://maps.googleapis.com/maps/api/js?key=AIzaSyDtcHxOFVAd8QW7ke13skNM0dgQToRuCfE ">


</script>

JavaScript

// This example creates circles on the map, representing populations in North
// America.

// First, create an object containing LatLng and population for each city.
var citymap = {
  chicago: {
    center: {
      lat: 41.878,
      lng: -87.629
    },
    population: 2714856
  },
  newyork: {
    center: {
      lat: 40.714,
      lng: -74.005
    },
    population: 8405837
  },
  losangeles: {
    center: {
      lat: 34.052,
      lng: -118.243
    },
    population: 3857799
  },
  vancouver: {
    center: {
      lat: 49.25,
      lng: -123.1
    },
    population: 603502
  },
  kansas: {
    center: {
      lat: 40,
      lng: -94
    },
    population: 2714856
  }
};
var latLngA = {
  Mexico: {
    center: {
      lat: 40,
      lng: -94
    }
  }
};

function initMap() {
  //var latLngA = new google.maps.LatLng(38, -93);
  // Create the map.
  var map = new google.maps.Map(document.getElementById('map'), {
    zoom: 4,
    center: {
      lat: 37.090,
      lng: -95.712
    },
    mapTypeId: 'terrain'
  });

  var i = null;
  for (i = 0; citymap.length > i; i++) {
    if (citymap[i].center == latLngA[mexico].center) {
      alert('this is true');
    }
  }

  // Construct the circle for each value in citymap.
  // Note: We scale the area of the circle based on the population.
  for (var city in citymap) {
    // Add the circle for this city to the map.
    var cityCircle = new google.maps.Circle({
      strokeColor: '#FF0000',
      strokeOpacity: 0.8,
      strokeWeight: 2,
      fillColor: '#FF0000',
      fillOpacity: 0.35,
      map: map,
      center: citymap[city].center,
      radius: Math.sqrt(citymap[city].population) * 100
    });
  }
  if (citymap.includes(latLngA)) {
    alert('TRUE');
  } else {
    alert('False');
  }
}
initMap();