관리-도구

편집 파일: isArguments.js

var isArrayLike = require('../internal/isArrayLike'), isObjectLike = require('../internal/isObjectLike'); /** Used for native method references. */ var objectProto = Object.prototype; /** Used to check objects for own properties. */ var hasOwnProperty = objectProto.hasOwnProperty; /** Native method references. */ var propertyIsEnumerable = objectProto.propertyIsEnumerable; /** * Checks if `value` is classified as an `arguments` object. * * @static * @memberOf _ * @category Lang * @param {*} value The value to check. * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`. * @example * * _.isArguments(function() { return arguments; }()); * // => true * * _.isArguments([1, 2, 3]); * // => false */ function isArguments(value) { return isObjectLike(value) && isArrayLike(value) && hasOwnProperty.call(value, 'callee') && !propertyIsEnumerable.call(value, 'callee'); } module.exports = isArguments;