contents = [
["name": "banana"
"id": 1],
["name": "cabbage"
"id": 2],
["name": "tomato"
"id": 3],
["name": "strawberry"
"id": 4],
]
contentsId = [1, 3]
こんな配列があった時、contentsIdに含まれるIDのものだけ取り出したい時
filted = content.filter({ contentsId.contains($0.id) })
↓
[
["name": "banana"
"id": 1],
["name": "cabbage"
"id": 3],
]