ramda-adjunct/lib/isPromise.js

Ramda Adjunct is the most popular and most comprehensive set of utilities for use with Ramda, providing a variety of useful, well tested functions with excellent documentation.

"use strict";

exports.__esModule = true;
exports["default"] = void 0;
var _ramda = require("ramda");
var _isObj = _interopRequireDefault(require("./isObj.js"));
function _interopRequireDefault(e) { return e && e.__esModule ? e : { "default": e }; }
/**
 * Checks if input value is a native `Promise`.
 * The Promise object represents the eventual completion (or failure)
 * of an asynchronous operation, and its resulting value.
 *
 * @func isPromise
 * @memberOf RA
 * @since {@link https://char0n.github.io/ramda-adjunct/2.1.0|v2.1.0}
 * @category Type
 * @sig * -> Boolean
 * @param {*} val The value to test
 * @return {boolean}
 * @see {@link https://promisesaplus.com/|Promises/A+}, {@link RA.isThenable|isThenable}
 * @example
 *
 * RA.isPromise(null); // => false
 * RA.isPromise(undefined); // => false
 * RA.isPromise([]); // => false
 * RA.isPromise(Promise.resolve()); // => true
 * RA.isPromise(Promise.reject()); // => true
 * RA.isPromise({ then: () => 1 }); // => false
 */
var isPromise = (0, _ramda.curryN)(1, (0, _ramda.both)(_isObj["default"], (0, _ramda.pipe)(_ramda.toString, (0, _ramda.equals)('[object Promise]'))));
var _default = exports["default"] = isPromise;