isArguments.js
963 Bytes
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;