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node_modules/es-abstract/2021/NewPromiseCapability.js
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TON618OFF
не ну это ваще
23 июн 2024, 00:30
23 июн 2024, 00:30
e27ae20
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О чём код?
'use strict'; var $TypeError = require('es-errors/type'); var IsCallable = require('./IsCallable'); var IsConstructor = require('./IsConstructor'); // https://262.ecma-international.org/6.0/#sec-newpromisecapability module.exports = function NewPromiseCapability(C) { if (!IsConstructor(C)) { throw new $TypeError('C must be a constructor'); // step 1 } var resolvingFunctions = { '[[Resolve]]': void undefined, '[[Reject]]': void undefined }; // step 3 var promise = new C(function (resolve, reject) { // steps 4-5 if (typeof resolvingFunctions['[[Resolve]]'] !== 'undefined' || typeof resolvingFunctions['[[Reject]]'] !== 'undefined') { throw new $TypeError('executor has already been called'); // step 4.a, 4.b } resolvingFunctions['[[Resolve]]'] = resolve; // step 4.c resolvingFunctions['[[Reject]]'] = reject; // step 4.d }); // step 4-6 if (!IsCallable(resolvingFunctions['[[Resolve]]']) || !IsCallable(resolvingFunctions['[[Reject]]'])) { throw new $TypeError('executor must provide valid resolve and reject functions'); // steps 7-8 } return { '[[Promise]]': promise, '[[Resolve]]': resolvingFunctions['[[Resolve]]'], '[[Reject]]': resolvingFunctions['[[Reject]]'] }; // step 9 };