none

Full name: taxi.stdlib.none

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Signature

declare extension function <T> none(collection: T[], predicate: (T) -> Boolean): Boolean

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Description

Returns true if none of the items in the collection satisfy the predicate.

Returns true for an empty collection (vacuous truth).

// Check that no task is overdue
find { sprint: Sprint } as {
   noOverdue: Boolean = sprint.tasks.none((task) -> task.isOverdue)
}

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Examples

Returns true when no item in the collection satisfies the predicate.