September 25, 1999 - Generating a Random Number | WebReference

September 25, 1999 - Generating a Random Number

Yehuda Shiran September 25, 1999
Generating a Random Number
Tips: September 1999

Yehuda Shiran, Ph.D.
Doc JavaScript

JavaScript's Math.random() method returns a pseudorandom number between 0 and 1. The following function uses this built-in method to create a more useful random number between two given integers:

function generate(x, y) {
  var range = y - x + 1;
  return Math.floor(Math.random() * range) + x;
}
Note that the random() method isn't supported by Navigator 2.0x.