Generate random value from list of numbers

Question

How I can generate list of random values in Ruby from a list of numbers?

[100, 643, 826, 804, 372, 076, 156, 152, 036, 248]

How I can pick one random number from the list?

score 2 · Accepted Answer · edited Feb 22 '17 at 11:37

2

Just use Array#sample:

[100, 643, 826, 804, 372, 076, 156, 152, 036, 248].sample

Available in Ruby 1.9.1+. In an earlier version of Ruby, you could

require 'backports/1.9.1/array/sample'

edited Feb 22 '17 at 11:37

ndnenkov

answered Feb 22 '17 at 09:42

Cedric Druck

Are you sure it was 1.9.1 and not 1.9.0 that introduced `#sample`? – ndnenkov Feb 22 '17 at 11:40

1 Answers1