delete-random ( seq -- elt ) - Factor Documentation

delete-random ( seq -- elt )
Generating random integers

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Vocabulary
random

Inputs

seq a sequence

Outputs

elt an object

Word description
Deletes a random number from a sequence using remove-nth! and returns the deleted object.

Definition

USING: kernel sequences ;

: delete-random ( seq -- elt )
[ length random ] keep [ nth ] 2keep remove-nth! drop ;