Comments on: Getting random number between range of two numbers in JavaScript

By: Darrel

Darrel — Wed, 16 Mar 2011 22:37:57 +0000

I have started to use jPaq and found that they have a function called Math.randomIn. This function seems to offer the same functionality. I found it here: http://jpaq.org/documentation/Math.randomIn%28%29/1.0/

By: Joseph

Joseph — Sat, 05 Mar 2011 19:10:51 +0000

Thank you so much!!! now I can generate a range of years. I generated a random year between 2011 – 2112

By: Nate

Nate — Tue, 02 Mar 2010 17:11:17 +0000

here is a link to jsbin.com to see the histogram, give it a try:
http://jsbin.com/ihaqi/3/edit

By: Nate

Nate — Tue, 02 Mar 2010 15:16:31 +0000

The rounding causes a favoring in the middle of the range, not an even distribution:
For example: randomXToY(0, 2) will return 1 half of the time and 0 a 1/4th of the time and 2 also just 1/4 of the time.

maybe a better way is to use floor and you have to up the range by one unit of granularity.
function randomMinToMax(min, max)
var range = max – min + 1;
return Math.floor(Math.random()*range+min);
}

By: pligg.com

pligg.com — Thu, 17 Dec 2009 20:01:53 +0000

Getting random number between range of two numbers in JavaScript…

Yesterday, Steve asked me how can we have random number function in JavaScript like rand() function of PHP where the programmer can specify the range of two numbers within which we need the random number. Today, I’m going to share two functions in Jav…

By: Data Outsourcing India

Data Outsourcing India — Fri, 31 Jul 2009 15:29:15 +0000

Thanks Buddy!!!
Its really helpful, getting random number in JavaScript.

By: sohbet

sohbet — Thu, 02 Jul 2009 13:22:29 +0000

hi good thank you master

By: David

David — Tue, 23 Dec 2008 17:43:14 +0000

Great post. The random between function is pretty helpful.