DefinitelyTyped/types/amap-js-api/type-util.d.ts

13 lines
397 B
TypeScript

declare namespace AMap {
type Omit<T, E extends keyof T> = {
[K in Exclude<keyof T, E>]: T[K]
};
type OptionalKey<T> = { [K in keyof T]-?: undefined extends T[K] ? K : never }[keyof T];
type Merge<O, T> =
{ [K in Exclude<keyof O, keyof T | OptionalKey<O>>]-?: O[K]; } &
{ [K in Extract<Exclude<keyof O, keyof T>, OptionalKey<O>>]?: O[K]; } &
T;
}