@ramda/isnil/isNil.js

R.isNil exported as a module

//  Ramda v0.26.1
//  https://github.com/ramda/ramda
//  (c) 2013-2019 Scott Sauyet, Michael Hurley, and David Chambers
//  Ramda may be freely distributed under the MIT license.

(function (global, factory) {
  typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports) :
  typeof define === 'function' && define.amd ? define(['exports'], factory) :
  (factory((global.R = {})));
}(this, (function (exports) { 'use strict';

  function _isPlaceholder(a) {
    return a != null &&
           typeof a === 'object' &&
           a['@@functional/placeholder'] === true;
  }

  /**
   * Optimized internal one-arity curry function.
   *
   * @private
   * @category Function
   * @param {Function} fn The function to curry.
   * @return {Function} The curried function.
   */
  function _curry1(fn) {
    return function f1(a) {
      if (arguments.length === 0 || _isPlaceholder(a)) {
        return f1;
      } else {
        return fn.apply(this, arguments);
      }
    };
  }

  /**
   * Checks if the input value is `null` or `undefined`.
   *
   * @func
   * @memberOf R
   * @since v0.9.0
   * @category Type
   * @sig * -> Boolean
   * @param {*} x The value to test.
   * @return {Boolean} `true` if `x` is `undefined` or `null`, otherwise `false`.
   * @example
   *
   *      R.isNil(null); //=> true
   *      R.isNil(undefined); //=> true
   *      R.isNil(0); //=> false
   *      R.isNil([]); //=> false
   */
  var isNil = _curry1(function isNil(x) { return x == null; });

  exports.isNil = isNil;

  Object.defineProperty(exports, '__esModule', { value: true });

})));