@ricepuddin/redux-segment/examples/react-redux/src/utils/isPromise.js

Segment.io analytics integration for redux.

/**
 * Returns whether the provided value is a promise
 *
 * @param {object} value Potential promise
 * @return {Boolean}
 */
export default function isPromise(value) {
  if (value !== null && typeof value === 'object') {
    return value.promise && typeof value.promise.then === 'function';
  }
}