JavaScript Program to swap two numbers without using a third variable
In this program, you will learn how to swap two numbers without using a third variable in JavaScript.
x = x + y
y = x - y
x = x - y
![JavaScript Program to swap two numbers without using a third variable](https://xiith.com/wp-content/uploads/2020/07/swap-two-number.png)
Example: How to swap two numbers without using a third variable in JavaScript
let x = parseInt(prompt("Enter first number"))
let y = parseInt(prompt("Enter second number"))
x = x + y
y = x - y
x = x - y
console.log("After swap x is:"+ x)
console.log("After swap y is:"+ y)
Output:
Enter first number> 30
Enter second number> 40
After swap x is:40
After swap y is:30