typescript 排除属性

Posted 2021-05-20

// interface for unneeded props
interface APIMetaProps {
   _id: number;
   created: number;
   last_updated: number;
}

//generic type for props - unneeded props
type DropAPIMeta<T> = Pick<T, Exclude<keyof T, keyof APIMetaProps>>;

//utility function to remove unneeded props from an object
function dropAPI<T extends DropAPIMeta>(obj: T): DropAPIMeta<T> {
    let { _id, created, last_updated, ...rest } = obj;
    return rest;
}