isPromise.js 611 B

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  1. 'use strict';
  2. Object.defineProperty(exports, '__esModule', {
  3. value: true
  4. });
  5. exports.default = void 0;
  6. /**
  7. * Copyright (c) Facebook, Inc. and its affiliates. All Rights Reserved.
  8. *
  9. * This source code is licensed under the MIT license found in the
  10. * LICENSE file in the root directory of this source tree.
  11. */
  12. // capture global.Promise before it may potentially be overwritten
  13. const Promise = global.Promise; // see ES2015 spec 25.4.4.5, https://stackoverflow.com/a/38339199
  14. const isPromise = candidate => Promise.resolve(candidate) === candidate;
  15. var _default = isPromise;
  16. exports.default = _default;