redux-promise-middleware-global-action/dist/es/isPromise.js

Redux middleware for promises, async functions and conditional optimistic updates

var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; };

export default function isPromise(value) {
  if (value !== null && (typeof value === 'undefined' ? 'undefined' : _typeof(value)) === 'object') {
    return value && typeof value.then === 'function';
  }

  return false;
}