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isthatcentered/DeepPartial.ts

Last active June 19, 2020 05:26
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Typescript - Deep Partial
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DeepPartial.ts
https://stackoverflow.com/questions/45372227/how-to-implement-typescript-deep-partial-mapped-type-not-breaking-array-properti/49936686#49936686
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]>
};
// Short version to try more, this hasn't caused me problems (yet :D)
export type DeepPartial<T> = {[P in keyof T]?: DeepPartial<T[P]>}
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