Type Alias CommonPropKeys<A, Options>

CommonPropKeys: IsNever<
    A,
    {
        $else: A extends Readonly<
            (infer R extends Record<KeyTypes, unknown>)[],
        >
            ? keyof R
            : never;
        $then: Options["$never"];
    },
>

⚗️ transform 🔢 customization

Gets the common keys of the record types in the array A.

Type Parameters

A extends readonly Record<KeyTypes, unknown>[]
Options extends ArrayPlus.CommonPropKeys.Options = ArrayPlus.CommonPropKeys.DefaultOptions

Example

import { type ArrayPlus } from 'type-plus'

type R = ArrayPlus.CommonPropKeys<Array<{ a: 1 }>> // 'a'
type R = ArrayPlus.CommonPropKeys<Array<{ a: 1, b: 1 } | { a: 1, c: 1 }>> // 'a'

Type Param: Options['$never']

Return type when T is never. Default to never.

Type Alias CommonPropKeys<A, Options>

Type Parameters

Example

Type Param: Options['$never']

Settings