| 1 | import { Key } from '../Any/Key';
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| 2 | import { x } from '../Any/x';
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| 3 | import { Replace } from '../Union/Replace';
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| 4 | /**
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| 5 | * Update in `O` the fields of key `K` with `A`.
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| 6 | * Use the [[x]] placeholder to get the current field type.
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| 7 | * @param O to update
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| 8 | * @param K to chose fields
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| 9 | * @param A to update with
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| 10 | * @returns [[Object]]
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| 11 | * @example
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| 12 | * ```ts
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| 13 | * import {A, O} from 'ts-toolbelt'
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| 14 | *
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| 15 | * type User = {
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| 16 | * info: {
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| 17 | * name: string
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| 18 | * age: number
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| 19 | * payment: {}
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| 20 | * }
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| 21 | * id: number
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| 22 | * }
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| 23 | *
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| 24 | * type test0 = Update<User, 'id' | 'info', A.x | null>
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| 25 | * // {
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| 26 | * // info: {
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| 27 | * // name: string;
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| 28 | * // age: number;
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| 29 | * // payment: {};
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| 30 | * // } | null;
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| 31 | * // id: number | null;
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| 32 | * // }
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| 33 | * ```
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| 34 | */
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| 35 | export declare type Update<O extends object, K extends Key, A extends any> = {
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| 36 | [P in keyof O]: P extends K ? Replace<A, x, O[P]> : O[P];
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| 37 | } & {};
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