/** * lodash 3.0.4 (Custom Build) * Build: `lodash modern modularize exports="npm" -o ./` * Copyright 2012-2015 The Dojo Foundation * Based on Underscore.js 1.8.3 * Copyright 2009-2015 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors * Available under MIT license */ /** * Checks if `value` is object-like. * * @private * @param {*} value The value to check. * @returns {boolean} Returns `true` if `value` is object-like, else `false`. */ function isObjectLike(value) { return !!value && typeof value == 'object'; } /** 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; /** * Used as the [maximum length](http://ecma-international.org/ecma-262/6.0/#sec-number.max_safe_integer) * of an array-like value. */ var MAX_SAFE_INTEGER = 9007199254740991; /** * The base implementation of `_.property` without support for deep paths. * * @private * @param {string} key The key of the property to get. * @returns {Function} Returns the new function. */ function baseProperty(key) { return function(object) { return object == null ? undefined : object[key]; }; } /** * Gets the "length" property value of `object`. * * **Note:** This function is used to avoid a [JIT bug](https://bugs.webkit.org/show_bug.cgi?id=142792) * that affects Safari on at least iOS 8.1-8.3 ARM64. * * @private * @param {Object} object The object to query. * @returns {*} Returns the "length" value. */ var getLength = baseProperty('length'); /** * Checks if `value` is array-like. * * @private * @param {*} value The value to check. * @returns {boolean} Returns `true` if `value` is array-like, else `false`. */ function isArrayLike(value) { return value != null && isLength(getLength(value)); } /** * Checks if `value` is a valid array-like length. * * **Note:** This function is based on [`ToLength`](http://ecma-international.org/ecma-262/6.0/#sec-tolength). * * @private * @param {*} value The value to check. * @returns {boolean} Returns `true` if `value` is a valid length, else `false`. */ function isLength(value) { return typeof value == 'number' && value > -1 && value % 1 == 0 && value <= MAX_SAFE_INTEGER; } /** * 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;