diff options
-rw-r--r-- | shuffle.rb | 12 |
1 files changed, 6 insertions, 6 deletions
@@ -16,19 +16,19 @@ module Puppet::Parser::Functions raise(Puppet::ParseError, 'shuffle(): Requires an array to work with') end - return [] if array.size == 0 - return array if array.size <= 1 + result = array.clone + elements = result.size - list = array.clone - elements = list.size + return [] if result.size == 0 + return result if result.size <= 1 # Simple implementation of Fisher–Yates in-place shuffle ... elements.times do |i| j = rand(elements - i) + i - list[j], list[i] = list[i], list[j] + result[j], result[i] = result[i], result[j] end - return list + return result end end |