I'm proposing a new extension method on SequenceType called find(). It's
similar to CollectionType.indexOf() except it returns the element:
extension SequenceType {
/// Returns the first element where `predicate` returns `true`, or `nil`
/// if such value is not found.
public func find(@noescape predicate: (Self.Generator.Element) throws ->
Bool) rethrows -> Self.Generator.Element? {
for elt in self {
if try predicate(elt) {
return elt
}
}
return nil
}
}
-Kevin Ballard
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