Consider the following code snippet:
interface DbType {
id: string,
}
interface RowType extends DbType {
name: string
}
class MyDB<T extends DbType> {
insert(item: T) { }
delete(id: [typeof id]) { }
}
Let's say I create a new instance with new MyDB<RowType>(), how can I ensure that the delete method only accepts the same type as DbType.id?
Any ideas on how to achieve this?
If you're in need of a solution, consider utilizing a generic constraint along with an Indexed Access type for the delete parameter.
interface DatabaseType {
id: string;
}
interface RowDataType extends DatabaseType {
name: string;
}
class Database<T extends DatabaseType> {
insert(item: T) {}
delete(id: T["id"]) {}
}
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