Work around Typed Array limitation in IE

src/layer/GeoJSONWorkerLayer.js

@@ -225,7 +225,7 @@ class GeoJSONWorkerLayer extends Layer {
           pickingId = this.getPickingId();
 
           pickingIds = new Float32Array(splitPositions[i].length / 3);
-          pickingIds.fill(pickingId);
+          Buffer.fillTypedArray(pickingIds, pickingId);
 
           obj.attributes[0].pickingIds = pickingIds;
 
@@ -387,7 +387,7 @@ class GeoJSONWorkerLayer extends Layer {
           pickingId = this.getPickingId();
 
           pickingIds = new Float32Array(splitPositions[i].length / 3);
-          pickingIds.fill(pickingId);
+          Buffer.fillTypedArray(pickingIds, pickingId);
 
           obj.attributes[0].pickingIds = pickingIds;
 
@@ -498,7 +498,7 @@ class GeoJSONWorkerLayer extends Layer {
           pickingId = this.getPickingId();
 
           pickingIds = new Float32Array(splitPositions[i].length / 3);
-          pickingIds.fill(pickingId);
+          Buffer.fillTypedArray(pickingIds, pickingId);
 
           obj.attributes[0].pickingIds = pickingIds;
 

src/util/Buffer.js

@@ -353,6 +353,12 @@ var Buffer = (function() {
     return textDecoder.decode(ab);
   };
 
+  var fillTypedArray = function(arr, value) {
+    for (var i = 0; i < arr.length; i++) {
+      arr[i] = value;
+    }
+  };
+
   return {
     mergeFloat32Arrays: mergeFloat32Arrays,
     splitFloat32Array: splitFloat32Array,
@@ -362,7 +368,8 @@ var Buffer = (function() {
     createLineGeometry: createLineGeometry,
     createGeometry: createGeometry,
     stringToUint8Array: stringToUint8Array,
-    uint8ArrayToString: uint8ArrayToString
+    uint8ArrayToString: uint8ArrayToString,
+    fillTypedArray: fillTypedArray
   };
 })();