26 lines
513 B
Plaintext
26 lines
513 B
Plaintext
import type {IsEqual} from './is-equal';
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/**
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Returns a boolean for whether either of two given types are true.
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Use-case: Constructing complex conditional types where multiple conditions must be satisfied.
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@example
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```
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import type {Or} from 'type-fest';
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Or<true, false>;
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//=> true
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Or<false, false>;
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//=> false
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```
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@see {@link And}
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*/
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export type Or<A extends boolean, B extends boolean> = [A, B][number] extends false
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? false
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: true extends [IsEqual<A, true>, IsEqual<B, true>][number]
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? true
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: never;
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