zent/utils/src/isPromise.js

一套前端设计语言和基于React的实现

/**
 * Test whether an object looks like a promise
 *
 * @export
 * @param {any} obj
 * @returns {bool}
 */
export default function isPromise(obj) {
  return !!obj && (typeof obj === 'object' || typeof obj === 'function') && typeof obj.then === 'function';
}