JavaScript program to take a number as input and calculate the square root of given number

Following program shows you how to take a number as input and calculate the square root of given number.
In this program we get input from user and calculate square root using Math.sqrt() method

var input = parseInt(prompt("Enter a number:"));
var result = Math.sqrt(input)
console.log("Square root of " + input + " is: " + result);

Output:

Enter a number:
64
Square root of 64.0 is: 8.0