Method: Rex::Text.shuffle_a

Defined in:
lib/rex/text.rb

.shuffle_a(arr) ⇒ Array

Performs a Fisher-Yates shuffle on an array

Modifies arr in place

Parameters:

  • arr (Array) —

    The array to be shuffled

Returns:

  • (Array) 


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# File 'lib/rex/text.rb', line 1555

def self.shuffle_a(arr)
  len = arr.length
  max = len - 1
  cyc = [* (0..max) ]
  for d in cyc
    e = rand(d+1)
    next if e == d
    f = arr[d];
    g = arr[e];
    arr[d] = g;
    arr[e] = f;
  end
  return arr
end