@naturalcycles/js-lib/dist/promise/pDefer.js

Standard library for universal (browser + Node.js) javascript

/* eslint-disable @typescript-eslint/promise-function-async */
/**
 * Returns DeferredPromise - a Promise that has .resolve() and .reject() methods.
 */
export function pDefer() {
    let resolve;
    let reject;
    const promise = new Promise((_resolve, _reject) => {
        resolve = _resolve;
        reject = _reject;
    });
    promise.resolve = resolve;
    promise.reject = reject;
    promise.rejectAborted = reason => reject(new Error(['Aborted', reason].filter(Boolean).join(': ')));
    promise.abort = reason => promise.rejectAborted(reason);
    return promise;
}