<div id="map"></div>
<script>
var extent = new kendo.dataviz.map.Extent(
    new kendo.dataviz.map.Location(42.3601, -71.0589), // Boston
    new kendo.dataviz.map.Location(40.7128, -74.0060)  // New York
);

var testLocations = [
    new kendo.dataviz.map.Location(25.7617, -80.1918), // Miami (outside)
    new kendo.dataviz.map.Location(32.7767, -96.7970), // Dallas (outside)
    new kendo.dataviz.map.Location(41.4993, -81.6944)  // Cleveland (inside)
];

console.log("Any location in extent:", extent.containsAny(testLocations)); // true

$("#map").kendoMap({
    center: extent.center(),
    zoom: 6
});
</script>