File: discriminatedUnionWithIndexSignature.ts

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node-typescript 5.2.2-1
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// @strict: true

export interface UnionAltA {
    type?: 'text';
}

export interface UnionAltB {
    type?: 'image' | 'video' | 'document';
}

export type ValueUnion = UnionAltA | UnionAltB;

export type MapOrSingleton =
    | {
        [key: string]: ValueUnion;
    }
    | ValueUnion;

const withoutAsConst: MapOrSingleton = {
    1: {
        type: 'text' /*as const*/,
    },
};

const withAsConst: MapOrSingleton = {
    1: {
        type: 'text' as const,
    },
};