Math.random()

[Sam63]

I am familar with using Math.random()...

i.e.
var i = Math.floor(1 + Math.random() * 10);

but I'm not sure how to get a random number in a set of numbers i.e. 2, 4, 6, 8, 10 ....any suggestions.

Sam

 

[jemminger]

Sam63,

if memory serves correctly, Math.Floor(Math.random() * x) will return a number between 0 and x.

======================================

if (!succeed) try();
-jeff

 

[Sam63]

I need to get a random number from a set of numbers that may not be consecutive, i.e.

6, 10, 14, 18 or 2, 4, 6, 8, 10

Math.floor(Math.random * x) does not do this. Any suggestions??

 

[jemminger]

hmm...

set up an array to hold your set of numbers:

var set = new Array('2','4','6','8','10');

then use Math.floor(Math.random * set.length);

hope this works...I can't test it on the public computer I'm at right now... :-( ======================================

if (!succeed) try();
-jeff