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olibooty/Requirer.ts

Created June 11, 2024 12:46
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Requirer.ts
/**
* Renders supplied properties of an object required
*/
type Requirer <T, K extends keyof T> = T & { [P in K]-?: T[P] }
interface Foo {
opt?: string;
}
type ReqFoo = Requirer<Foo, 'opt'>
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olibooty commented Jun 11, 2024

better implementation: https://www.typescriptlang.org/docs/handbook/2/mapped-types.html#mapping-modifiers

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