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JavaScript JavaScript Functions Arrow Functions Function Challenge Solution

Tural Rzazade
Tural Rzazade
3,750 Points
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
231,261 Points
Steven Parker
Steven Parker
231,261 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
Tural Rzazade
Tural Rzazade
3,750 Points

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

Steven Parker
Steven Parker
231,261 Points
Steven Parker
Steven Parker
231,261 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
231,261 Points
Steven Parker
Steven Parker
231,261 Points

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

Tural Rzazade
Tural Rzazade
3,750 Points
Tural Rzazade
Tural Rzazade
3,750 Points

Right. It had to be lower .