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 Functions Arrow Functions Function Challenge Solution

Posted by Tural Rzazade
Tural Rzazade
3,750 Points

A solution including "lower" ( "min" in the video ) value 0.

function random (lower, upper) {
  let result = Math.floor(Math.random() * (upper - lower)) + lower;
  return result;
}

random()

2 Answers

Steven Parker
Steven Parker
240,995 Points
Steven Parker
Steven Parker
240,995 Points

If you compare this to the code shown in the video, you'll see that this formula is missing the "+ 1" which is needed to make the random range inclusive of the higher number.

Tural Rzazade
Tural Rzazade
3,750 Points

In that case, it excludes the 0, doesn't it?

Steven Parker
Steven Parker
240,995 Points
Steven Parker
Steven Parker
240,995 Points

No, because the + 1 is part of the multiplier. If the random function returns 0, no matter what you multiply it by, the value will still be 0.

Steven Parker
Steven Parker
240,995 Points
Steven Parker
Steven Parker
240,995 Points

Did you post the wrong sample? I don't see "min" being used in this code.

Tural Rzazade
Tural Rzazade
3,750 Points

Right. It had to be lower .