33 lines
1.1 KiB
TypeScript
33 lines
1.1 KiB
TypeScript
/**
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* Wait for {@link ms} milliseconds
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*
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* This function is a promisified `setTimeout`. It returns a promise that
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* resolves after {@link ms} milliseconds.
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*/
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export const wait = (ms: number) =>
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new Promise((resolve) => setTimeout(resolve, ms));
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/**
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* Await the given {@link promise} for {@link timeoutMS} milliseconds. If it
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* does not resolve within {@link timeoutMS}, then reject with a timeout error.
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*
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* Note that this does not abort {@link promise} itself - it will still get
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* resolved to completion, just its result will be ignored if it gets resolved
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* after we've already timed out.
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*/
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export const withTimeout = async <T>(promise: Promise<T>, ms: number) => {
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let timeoutId: ReturnType<typeof setTimeout>;
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const rejectOnTimeout = new Promise<T>((_, reject) => {
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timeoutId = setTimeout(
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() => reject(new Error("Operation timed out")),
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ms,
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);
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});
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const promiseAndCancelTimeout = async () => {
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const result = await promise;
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clearTimeout(timeoutId);
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return result;
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};
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return Promise.race([promiseAndCancelTimeout(), rejectOnTimeout]);
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};
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