flo-utils/lib/beNaN.js

some utils

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = void 0;

var _isNumber = _interopRequireDefault(require("./isNumber"));

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

/**
 * @param {*} value 检查参数
 * @returns {boolean} 返回检查结果；`true`，则`value`是NaN，否则不是
 * @example
 *
 * beNaN(NaN);
 * // => true
 *
 * beNaN(new Number(NaN));
 * // => true
 *
 * window.isNaN(undefined);
 * // => true
 *
 * beNaN(undefined);
 * // => false
 */
function beNaN(value) {
  return (0, _isNumber.default)(value) && value !== +value;
}

var _default = beNaN;
exports.default = _default;