Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

JavaScript JavaScript Numbers The Math Object Random Number Challenge – Two Numbers Solution

Posted by Istvan Toth
Istvan Toth
14,348 Points

My solution for the coding challenge:

const userNumb = +prompt('Gimmi any random number that you want!');
const userNumbTwo = +prompt('Gimmi another number that bigger tham the first one!');

if (!userNumb || !userNumbTwo){
  alert('Gimme a real number dummy');
} else { 
const randNumGenerator = Math.floor( Math.random() * (userNumb - userNumbTwo) + userNumbTwo ) +1;
const message = `Here is a random number from ${userNumb} to ${userNumbTwo} and that is your random number: ${randNumGenerator}`;
alert(message);
}

1 Answer

Steven Parker
Steven Parker
231,275 Points
Steven Parker
Steven Parker
231,275 Points

Since 0 is not allowed here, it doesn't make a difference; but be aware that when using + for number conversion, an empty response will be converted to a 0, but parseInt considers it to be NaN.

Perhaps this exercise should allow 0 as a choice. For advanced practice, you could try adjusting this code to allow 0 (but not a blank response) to be one of the numbers.