Use String#startsWith instead of String#indexOf

examples/drag-and-drop-custom-kmz.js

@@ -27,7 +27,7 @@ function getKMLImage(href) {
   let url = href;
   let path = window.location.href;
   path = path.slice(0, path.lastIndexOf('/') + 1);
-  if (href.indexOf(path) === 0) {
+  if (href.startsWith(path)) {
     const regexp = new RegExp(href.replace(path, '') + '$', 'i');
     const kmlFile = zip.file(regexp)[0];
     if (kmlFile) {

examples/vector-tile-selection.js

@@ -86,7 +86,7 @@ map.on(['click', 'pointermove'], function (event) {
     }
     const fid = feature.getId();
 
-    if (selectElement.value.indexOf('singleselect') === 0) {
+    if (selectElement.value.startsWith('singleselect')) {
       selection = {};
     }
     // add selected feature to lookup