Typescript-promise-any NPM

promise.any

ES Proposal spec-compliant shim for Promise.any. Invoke its "shim" method to shim Promise.any if it is unavailable or noncompliant. Note: a global Promise must already exist: the es6-shim is recommended.

This package implements the es-shim API interface. It works in an ES3-supported environment that has Promise available globally, and complies with the proposed spec.

Most common usage:

import assert from "assert";
import any from "promise.any";

const resolved = Promise.resolve(42);
const rejected = Promise.reject(-1);
const alsoRejected = Promise.reject(Infinity);

any([resolved, rejected, alsoRejected]).then(result => {
	assert.equal(result, 42);
});

any([rejected, alsoRejected]).catch((error) => {
	assert.ok(error instanceof AggregateError);
	assert.deepEqual(error.errors, [-1, Infinity]);
});

any.shim(); // will be a no-op if not needed

Promise.any([resolved, rejected, alsoRejected]).then(result => {
	assert.equal(result, 42);
});

Promise.any([rejected, alsoRejected]).catch(error => {
	assert.ok(error instanceof AggregateError);
	assert.deepEqual(error.errors, [-1, Infinity]);
});