Realmオブジェクトの特定の列を一括で更新したい ### Realm Realm formap map (map ### // let realm = try! Realm() let n = 7 let results = realm.objects(Model.self).filter("number > %@" , n) //Results /* Results<Model> <> ( [0] Model { id = 1234; number = 8; }, [1] Model { id = 5678; number = 9; } ) */ //Resultsnumber(Int)- let Test = results.map { (<#Model#>) -> U in <#code#> } // let Test = results.map { $0.listNumber - 1 } ### * Swift5 * Xcode11.6 * Realm5.0.2

for


try! realm.write {
for result in results {
result.number = result.number - 1
}
}


map


try! realm.write {
results.map {
$0.number = $0.number - 1
}
}






results.map { $0.listNumber - 1 }


mapmapforEach


try! realm.write {
results.forEach {
$0.number = $0.number - 1
}
}