PhoneDroid/TypeScript Partials.md

Created September 5, 2023 12:51

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Partials

Makes a given union of keys partial.

type Partials < Type , Keys extends keyof Type = keyof Type > = 
    & Partial<Pick<Type,Keys>> 
    & Pick<Type,Exclude<keyof Type,Keys>>

interface A {
    a : string
    b : string
}

type B = Partials<A,'a'>

interface B {
    a ?: string
    b : string
}