Fixed missing TypeArray slice on constrained environments.

src.ts/utils/basex.ts

@@ -130,7 +130,7 @@ export class BaseX {
             bytes.push(0)
         }
 
-        return new Uint8Array(bytes.reverse())
+        return arrayify(new Uint8Array(bytes.reverse()))
     }
 }
 

src.ts/utils/bytes.ts

@@ -40,7 +40,7 @@ function addSlice(array: Uint8Array): Uint8Array {
 
     array.slice = function() {
         var args = Array.prototype.slice.call(arguments);
-        return new Uint8Array(Array.prototype.slice.apply(array, args));
+        return addSlice(new Uint8Array(Array.prototype.slice.apply(array, args)));
     }
 
     return array;