change JerryScript test case

APP_Framework/lib/JerryScript/testflie/demo.js

@@ -0,0 +1,28 @@
+//Quickly sort an array
+function quickSort(array, start, end) {
+      if (end - start < 1) {
+        return;
+      }
+      const target = array[start];
+      let l = start;
+      let r = end;
+      while (l < r) {
+        while (l < r && array[r] >= target) {
+          r--;
+        }
+        array[l] = array[r];
+        while (l < r && array[l] < target) {
+          l++;
+        }
+        array[r] = array[l];
+      }
+      array[l] = target;
+      quickSort(array, start, l - 1);
+      quickSort(array, l + 1, end);
+      return array;
+    }
+    
+const array = [5, 3, 8, 4, 2, 9, 1, 7, 6];
+console.log("The array before sorting is:",array);
+const sortedArray = quickSort(array, 0, array.length - 1);
+console.log("The sorted array is:",sortedArray);