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Fuzion • Idioms • Idiom # 250: Pick a random value from a map

Idiom # 250: Pick a random value from a map

See programming-idioms.org:

Code

x := m.values
      .drop (random.next_i32 m.size)
      .head

What are effects?

Runnable Example

ex250 is
  m := map_of [(1, "red"), (2, "pink"), (3, "lilac"), (4, "purple"), (5, "rose")]

  x := m.values
        .drop (random.next_i32 m.size)
        .head

  say x

What are effects?

next: Idiom # 251: Parse binary digits