Question

How to use Math.random() to get a random number between min (inclusive) and max (exclusive) in JavaScript

Answer 1

var min = 3;
var max  = 10;
var n = Math.random() * (max - min) + min;
document.write(n);

 
/*
run

9.120583119015542 
 
*/

 

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Answer 2

var min = 3;
var max  = 7;
var n;
for (var i = 0; i < 10; i++)
{
    n = Math.random() * (max - min) + min;
    document.write(n + "<br />");
}

 
/*
run

6.722737321850531
6.606430163025816
3.6566545749621513
4.694706528529381
4.129002148897234
3.974074155325747
4.659713472139972
4.019526055364357
3.975174493700944
4.255990438724478
 
*/

 

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