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1 year ago
'use strict';
var $ = require('../internals/export');
var aCallable = require('../internals/a-callable');
var getBuiltIn = require('../internals/get-built-in');
var call = require('../internals/function-call');
var newPromiseCapabilityModule = require('../internals/new-promise-capability');
var perform = require('../internals/perform');
var iterate = require('../internals/iterate');
var PROMISE_ANY_ERROR = 'No one promise resolved';
// `Promise.any` method
// https://tc39.es/ecma262/#sec-promise.any
$({ target: 'Promise', stat: true }, {
any: function any(iterable) {
var C = this;
var AggregateError = getBuiltIn('AggregateError');
var capability = newPromiseCapabilityModule.f(C);
var resolve = capability.resolve;
var reject = capability.reject;
var result = perform(function () {
var promiseResolve = aCallable(C.resolve);
var errors = [];
var counter = 0;
var remaining = 1;
var alreadyResolved = false;
iterate(iterable, function (promise) {
var index = counter++;
var alreadyRejected = false;
remaining++;
call(promiseResolve, C, promise).then(function (value) {
if (alreadyRejected || alreadyResolved) return;
alreadyResolved = true;
resolve(value);
}, function (error) {
if (alreadyRejected || alreadyResolved) return;
alreadyRejected = true;
errors[index] = error;
--remaining || reject(new AggregateError(errors, PROMISE_ANY_ERROR));
});
});
--remaining || reject(new AggregateError(errors, PROMISE_ANY_ERROR));
});
if (result.error) reject(result.value);
return capability.promise;
}
});