Function

select(_:_:)

Selects all elements from a collection that satisfy the given predicate.

func select(_ collection: any EcoreValue, _ predicate: (any EcoreValue) throws -> Bool) throws -> [any EcoreValue]

Parameters

collection: The collection to filter
predicate: A closure that takes an element and returns a Boolean value

Return Value

A new array containing elements that satisfy the predicate

Discussion

The select operation filters a collection, returning a new collection containing only those elements for which the predicate returns true. This operation preserves the original order of elements.

Examples

let numbers = [1, 2, 3, 4, 5] as [EInt]
let evens = try select(numbers) { ($0 as? EInt ?? 0) % 2 == 0 }
// Result: [2, 4]