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Wuen Han Lee
Courses Plus Student 2,305 PointsMath.floor(Math.random() * 256 We wont be getting 256 with this line, will we?
since 1 is exclusive from Math.random(). Are we eliminating the possibility of getting 256?
2 Answers
Derek Gibson
6,531 PointsYou ARE correct in thinking that getting a value of 256 is impossible, but... the reason for omitting the 256th value is that we only want a value of 0-255 because that is the acceptable range for RGB numbers.
Brian Hankins
5,735 PointsShort answer = No.
Reason: A random number generator always returns a value between 0 and 1, but never equal to one or the other. So the random number will be from 0.000000001 - 0.999999999. (Okay, really it could return a 0.00000000 but its highly, nearly impossible). So, with Math.floor(Math.random() * 256, you're going to return a random value from 0 to 255.
Wuen Han Lee
Courses Plus Student 2,305 PointsIn this refactor challenge, dave use this line without +1. Im wondering if there any reason for omitting the 256th value?