Enum.shuffle

You're seeing just the function shuffle, go back to Enum module for more information.

shuffle(enumerable)

Specs

shuffle(t()) :: list()

Returns a list with the elements of enumerable shuffled.

This function uses Erlang's :rand module to calculate the random value. Check its documentation for setting a different random algorithm or a different seed.

Examples

The examples below use the :exsss pseudorandom algorithm since it's the default from Erlang/OTP 22:

# Although not necessary, let's seed the random algorithm
iex> :rand.seed(:exsss, {1, 2, 3})
iex> Enum.shuffle([1, 2, 3])
[3, 2, 1]
iex> Enum.shuffle([1, 2, 3])
[2, 1, 3]