3f089bd37e
Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com> Co-authored-by: Andras Schmelczer <andras@schmelczer.dev>
25 lines
853 B
TypeScript
25 lines
853 B
TypeScript
type ResolveFunction<T> = undefined extends T
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? (value?: T) => unknown
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: (value: T) => unknown;
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/**
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* A type-safe utility function to create a Promise with resolve and reject functions.
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* @returns A tuple containing a Promise, a resolve function, and a reject function.
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*/
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export function createPromise<T = unknown>(): [
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Promise<T>,
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ResolveFunction<T>,
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(error: unknown) => unknown
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] {
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let resolve: undefined | ResolveFunction<T> = undefined;
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let reject: undefined | ((error: unknown) => unknown) = undefined;
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const creationPromise = new Promise<T>(
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(resolve_, reject_) =>
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// eslint-disable-next-line @typescript-eslint/no-unsafe-type-assertion
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((resolve = resolve_ as ResolveFunction<T>), (reject = reject_))
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);
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// eslint-disable-next-line @typescript-eslint/no-non-null-assertion
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return [creationPromise, resolve!, reject!];
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}
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