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Dan Putnam
Front End Web Development Techdegree Student 8,596 PointsMy random numbers are never = to the min or max
I've followed the video exactly but my random number never will output as the min or max. Only numbers between the min or max, unlike it shows in the video. Is Math.random messing up?
function random2(upper, lower){
return Math.floor(Math.random() * (upper - lower+1)) + lower;
}
document.write(random2(1,5));
Jason Anders
Treehouse Moderator 145,858 PointsYou need to flip the arguments around in the function.
Use
function random2(lower, upper) {
instead of
function random2(upper, lower) {
The rest of the code is fine. The problem lies here only.
1 Answer
Jason Anders
Treehouse Moderator 145,858 PointsHey Dan,
The reason you are not getting the "upper" or "lower" limit numbers is just a simple ordering of the arguments for the function. Instead of upper, lower, flip it to be lower, upper. The way the arguments are set up now, the function is doing 1 - 5 + 1 instead of 5 - 1 + 1.
Hope that makes sense. Keep Coding!
Dan Putnam
Front End Web Development Techdegree Student 8,596 PointsSilly error, thanks! I was able to do some interesting debugging at least.
I wonder why the output still seemed reasonable though. Math.floor must make negative numbers positive?
Jason Anders
Treehouse Moderator 145,858 PointsI've noticed that too.
Just haven't done the research yet as to why it reacts and outputs that way with a negative number. Lol. :)
Glad you got it all cleared up.
Dan Putnam
Front End Web Development Techdegree Student 8,596 PointsDan Putnam
Front End Web Development Techdegree Student 8,596 PointsIf I use min 1, max 6- the output is always 2-5 If I use min 1, max 2- the output is always 2.