BubbleSort: use Destructuring assignment to swap values (trekhleb#226)

* BubbleSort: use Destructuring assignment to swap values

* lint: add semi

Author: SidKwok

src/algorithms/sorting/bubble-sort/BubbleSort.js

@@ -19,9 +19,7 @@ export default class BubbleSort extends Sort {
 
         // Swap elements if they are in wrong order.
         if (this.comparator.lessThan(array[j + 1], array[j])) {
-          const tmp = array[j + 1];
-          array[j + 1] = array[j];
-          array[j] = tmp;
+          [array[j], array[j + 1]] = [array[j + 1], array[j]];
 
           // Register the swap.
           swapped = true;