Following program shows how to take a number as input and calculate the square of that number.
In this program we get input from user and prints square of that number using following formula
Square of number = input X input
var input = prompt("Please enter a number:"); var result = input * input; console.log("Squre of " + input + " is: " + result);
Please enter a number: 3 Squre of 3 is: 9