square brackets fix (#263)

04_quicksort/javascript/quick_sort/05_quicksort.js

@@ -6,19 +6,19 @@
  * @returns {Array} Sorted array
  */
 function quicksort(array) {
-  // base case, arrays with 0 or 1 element are already "sorted"
+	// base case, arrays with 0 or 1 element are already "sorted"
-  if (array.length < 2) return array;
+	if (array.length < 2) return array;
-  // recursive case
+	// recursive case
-  let pivot = array[0];
+	let pivot = array[0];
-  // sub-array of all the elements less than the pivot
+	// sub-array of all the elements less than the pivot
-  let less = array.slice(1).filter(function(el) {
+	let less = array.slice(1).filter(function (el) {
-    return el <= pivot;
+		return el <= pivot;
-  });
+	});
-  // sub-array of all the elements greater than the pivot
+	// sub-array of all the elements greater than the pivot
-  let greater = array.slice(1).filter(function(el) {
+	let greater = array.slice(1).filter(function (el) {
-    return el > pivot;
+		return el > pivot;
-  });
+	});
-  return quicksort(less).concat([pivot], quicksort(greater));
+	return quicksort(less).concat(pivot, quicksort(greater));
 }
 
-console.log(quicksort([10, 5, 2, 3])); 
+console.log(quicksort([10, 5, 2, 3]));