23 lines
636 B
TypeScript
23 lines
636 B
TypeScript
export type FunctionPropertyNames<T> = {
|
|
[K in keyof T]: T[K] extends Function ? K : never
|
|
}[keyof T]
|
|
|
|
export type FunctionProperties<T> = Pick<T, FunctionPropertyNames<T>>
|
|
|
|
export type PickWith<T, KT extends keyof T, V> = {
|
|
[P in KT]: T[P] extends V ? V : never
|
|
}
|
|
|
|
export type PickWithOpt<T, KT extends keyof T, V> = {
|
|
[P in KT]?: T[P] extends V ? V : never
|
|
}
|
|
|
|
// https://github.com/krzkaczor/ts-essentials Rocks!
|
|
export type DeepPartial<T> = {
|
|
[P in keyof T]?: T[P] extends Array<infer U>
|
|
? Array<DeepPartial<U>>
|
|
: T[P] extends ReadonlyArray<infer U>
|
|
? ReadonlyArray<DeepPartial<U>>
|
|
: DeepPartial<T[P]>
|
|
};
|