swapping value

Author: MohiuddinRabby

swap.js

@@ -0,0 +1,32 @@
+//swap variables value
+
+//process-1
+console.log("process-1");
+let numOne = 10;
+let numTwo = 20;
+console.log(`before : numOne : ${numOne} numTwo: ${numTwo}`);
+//before : numOne : 10 numTwo: 20
+let temp = numOne;
+numOne = numTwo;
+numTwo = temp;
+console.log(`after : numOne : ${numOne} numTwo: ${numTwo}`);
+//after : numOne : 20 numTwo: 10
+
+//process-2
+console.log("process-2");
+let x = 20;
+let y = 30;
+console.log(`before: x : ${x} y: ${y}`);
+//before: x : 20 y: 30
+x = x + y;
+y = x - y;
+x = x - y;
+console.log(`after: x : ${x} y: ${y}`);
+//after: x : 30 y: 20
+
+//process-3
+let a = 200;
+let b = 300;
+console.log("before:", a, b);
+[a, b] = [b, a];
+console.log("after:", a, b);