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ryanwilsonperkin/is-type.ts

Created November 25, 2020 14:07
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TS Type-safe tester for __typename on a GraphQL object
Raw
is-type.ts
interface TypenameObject {
__typename: string;
}
function isType<O extends TypenameObject, T extends O['__typename']>(obj: O, typename: T): boolean {
return obj.__typename === typename;
}
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