Type Alias FromKeyed<A, KeyName>

FromKeyed: A extends (infer Element)[]
    ? {
        [K in Element[KeyName] & PropertyKey]: Expand<
            Element & { [_ in KeyName & PropertyKey]: K },
        >
    }
    : never

Converts an array of objects with a common key into a keyed object

Type Parameters

A extends any[]
KeyName extends A extends (infer E)[] ? keyof E : never

Example

type ducksArray = [
	{ name: 'Gerald', quacks: 6 },
	{ name: 'Dorthy', quacks: 7 },
];

type ducks = FromKeyedArray<ducksArray, 'name'>; // { Gerald: { name: 'Gerald', quacks: 6 }, Dorthy: { name: 'Dorthy', quacks: 7 } }

Type Alias FromKeyed<A, KeyName>

Type Parameters

Example

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