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Last change
on this file since d24f17c was d24f17c, checked in by Aleksandar Panovski <apano77@…>, 15 months ago |
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Initial commit
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File size:
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| 1 | /**
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| 2 | * @hidden
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| 3 | */
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| 4 | export declare type _NullableKeys<O extends object> = {
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| 5 | [K in keyof O]-?: [O[K] & (undefined | null)] extends [never] ? never : K;
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| 6 | }[keyof O];
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| 7 | /**
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| 8 | * Get the keys of `O` that are nullable
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| 9 | *
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| 10 | * (⚠️ needs `--strictNullChecks` enabled)
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| 11 | * @param O
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| 12 | * @returns [[Key]]
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| 13 | * @example
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| 14 | * ```ts
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| 15 | * ```
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| 16 | */
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| 17 | export declare type NullableKeys<O extends object> = O extends unknown ? _NullableKeys<O> : never;
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