Question

Does anyone have Javascript code for generating all variations with repetition?

Example of variations with repetition:

(size=3, input=A,B)
AAA, AAB, ABA, BAA, ABB, BAB, BBA, BBB

What I need is to do something similar for numbers from 0-9 as the input and 6 digits length as size (according to my example).

Just to know, I got this working with a code in Java and also in .NET based on this project (check the link). All variations with repetition for what I need generates 1000000 values.

http://www.codeproject.com/KB/recipes/Combinatorics.aspx

Is it possible to do it in Javascript?

Answer 1

you have chosen the simplest case from combinatorics…

var i, n = 1000000;
for (i = 0; i < n; i++)
  console.log(('' + (i + n)).substring(1));

will give you all the combinations of 0-9 in 6 spots (1000000 === Math.pow(10, 6)).