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JavaScript JavaScript Basics (Retired) Creating Reusable Code with Functions Random Number Challenge Solution

J V
J V
3,414 Points
Posted by J V
J V
3,414 Points

Why do I not receive the correct output for the Random Number Challenge using Global Variables?

Below is my JavaScript code. The output provided is not between the user's specifications and I do not know why? Is there something that I am overlooking in the code?

var userMin = prompt("Enter the minimum number");
var userMax = prompt("Enter the maximum number");

var differential = userMax - userMin;

function calculateRandom(userMin,userMax)
{
  var number = Math.floor(Math.random() * (differential + 1)) + userMin;
  return number;
}

console.log(calculateRandom(userMin, userMax));

1 Answer

akak
akak
29,445 Points
akak
akak
29,445 Points

Hi,

Prompt is giving you back a string, not a number. So you're trying to add, for example "3" + "5" which gives "35" not a number 8. Use parseInt before each prompt to get correct values

var userMin = parseInt(prompt("Enter the minimum number"));
var userMax = parseInt(prompt("Enter the maximum number"));