Practice time with the Geometry Engine

In this practice, you will create an application that shows off the performance capabilities of the Geometry Engine by creating a buffer around the location of the user's cursor on the map and updating that buffer as the cursor moves.

1. Go to the ArcGIS API for JavaScript Sandbox and clear the contents of the following <script> block:

    <script> 
      var map; 
 
      require(["esri/map", "dojo/domReady!"], function(Map) { 
        map = new Map("map", { 
          basemap: "topo",  //For full list of ... 
          center: [-122.45, 37.75], // longitude, latitude 
          zoom: 13 
        }); 
      }); 
    </script>

2. Create a variable called map to store the esri/Map object:

<script> 
    var map; 
</script> 

3. Create the require() function to import the necessary modules as shown in the following:

<script> 
    var map; 
 
    require(["esri/map", 
        "esri/Color", 
        "esri/symbols/SimpleMarkerSymbol",...