Updated code

Author: Unishkhadka

solutions/ch_15_Swap_Numbers/answer.js

@@ -1,7 +1,11 @@
+// Declare a function swap that takes num_1 and num_2 as parameters.
 function swap(num_1,num_2){
-    console.log("Before swapping:\nnum_1 = "+num_1+"\nnum_2 = "+num_2)
+  // At first print the numbers before swaping
+    console.log("Before swapping:\n num_1 = "+num_1+"\n num_2 = "+num_2)
+  // Declare a variable temp and assigns the value of num_1 and assigns num_2 in num_1 and temp in num_2
   let temp = num_1;
       num_1 = num_2;
       num_2 = temp
-    console.log("After swapping:\nnum_1 = "+num_1+"\nnum_2 = "+num_2)
+  // Check the result by printing the output
+    console.log("After swapping:\n num_1 = "+num_1+"\n num_2 = "+num_2)
 }