24 lines
762 B
TypeScript
24 lines
762 B
TypeScript
export declare type OmitInferKey<T, R> = {
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[K in keyof T as T extends R ? never : K]: T[K];
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};
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export declare type OmitInferValue<T, R> = {
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[K in keyof T as T extends R ? never : K]: T[K];
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};
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export declare type ValueOf<Obj> = Obj[keyof Obj];
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export declare type OneOnly<Obj, Key extends keyof Obj> = {
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[key in Exclude<keyof Obj, Key>]?: undefined;
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} & Pick<Obj, Key>;
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export declare type OneOfByKey<Obj> = {
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[key in keyof Obj]: OneOnly<Obj, key>;
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};
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export declare type OneOf<Obj> = ValueOf<OneOfByKey<Obj>>;
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declare type IsOptional<T, K extends keyof T> = {
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[K1 in Exclude<keyof T, K>]: T[K1];
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} & {
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K?: T[K];
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} extends T ? K : never;
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export declare type OptionalKeys<T> = {
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[K in keyof T]: IsOptional<T, K>;
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}[keyof T];
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export {};
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