adamchalmers · September 11, 2017 14:43
diff --git a/extend_withnewelems_broken.swift b/extend_withnewelems_broken.swift
 func extend<T: Collection, U: Collection>(_ base: T, withNewElems: U) -> [T.Iterator.Element]
    where T.Iterator.Element == U.Iterator.Element {
        let newElems = withNewElems.filter { !base.contains($0) }
        return Array(base) + newElems
 }
	func extend<T: Collection, U: Collection>(_ base: T, withNewElems: U) -> [T.Iterator.Element]
	where T.Iterator.Element == U.Iterator.Element {
	let newElems = withNewElems.filter { !base.contains($0) }
	return Array(base) + newElems
	}