83 lines
2.0 KiB
TypeScript
83 lines
2.0 KiB
TypeScript
import { defer } from './smartpromise.classes.deferred.js';
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export * from './smartpromise.classes.cumulativedeferred.js';
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export * from './smartpromise.classes.deferred.js';
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/**
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* Creates a new resolved promise for the provided value.
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*/
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export const resolvedPromise = <T>(value?: T): Promise<T> => {
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return Promise.resolve(value);
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};
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/**
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* Creates a new rejected promise for the provided reason.
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*/
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export const rejectedPromise = (err) => {
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return Promise.reject(err);
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};
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interface IAsyncFunction<T> {
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(someArg: T): Promise<T>;
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}
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/**
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* accepts an array of inputs and a function that accepts the input.
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* runs all items with the function and returns the result array when all items have run
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* @param inputArg
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* @param functionArg
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*/
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export const map = async <T>(inputArg: T[], functionArg: IAsyncFunction<T>) => {
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const promiseArray: Promise<any>[] = [];
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const resultArray = [];
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for (const item of inputArg) {
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const promise: Promise<any> = functionArg(item);
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promiseArray.push(promise);
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promise.then((x) => {
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resultArray.push(x);
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});
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}
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await Promise.all(promiseArray);
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return resultArray;
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};
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export const timeoutWrap = async <T = any>(
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promiseArg: Promise<T>,
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timeoutInMsArg: number,
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rejectArg = true
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) => {
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return new Promise<T>((resolve, reject) => {
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setTimeout(() => {
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if (rejectArg) {
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reject(new Error('timeout'));
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} else {
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resolve(null);
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}
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}, timeoutInMsArg);
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promiseArg.then(resolve, reject);
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});
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};
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export const timeoutAndContinue = async <T = any>(
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promiseArg: Promise<T>,
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timeoutInMsArg = 60000
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) => {
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return timeoutWrap(promiseArg, timeoutInMsArg, false);
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};
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export const getFirstTrueOrFalse = async (promisesArg: Promise<boolean>[]) => {
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const done = defer<boolean>();
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for (const promiseArg of promisesArg) {
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promiseArg.then((resultArg) => {
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if (resultArg === true) {
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done.resolve(true);
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}
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});
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}
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Promise.all(promisesArg).then(() => {
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done.resolve(false);
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});
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return done.promise;
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};
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