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'use strict';
var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; };
module.exports = function is_array(mixedVar) {
// eslint-disable-line camelcase
// discuss at: http://locutus.io/php/is_array/
// original by: Kevin van Zonneveld (http://kvz.io)
// improved by: Legaev Andrey
// improved by: Onno Marsman (https://twitter.com/onnomarsman)
// improved by: Brett Zamir (http://brett-zamir.me)
// improved by: Nathan Sepulveda
// improved by: Brett Zamir (http://brett-zamir.me)
// bugfixed by: Cord
// bugfixed by: Manish
// bugfixed by: Brett Zamir (http://brett-zamir.me)
// note 1: In Locutus, javascript objects are like php associative arrays,
// note 1: thus JavaScript objects will also
// note 1: return true in this function (except for objects which inherit properties,
// note 1: being thus used as objects),
// note 1: unless you do ini_set('locutus.objectsAsArrays', 0),
// note 1: in which case only genuine JavaScript arrays
// note 1: will return true
// example 1: is_array(['Kevin', 'van', 'Zonneveld'])
// returns 1: true
// example 2: is_array('Kevin van Zonneveld')
// returns 2: false
// example 3: is_array({0: 'Kevin', 1: 'van', 2: 'Zonneveld'})
// returns 3: true
// example 4: ini_set('locutus.objectsAsArrays', 0)
// example 4: is_array({0: 'Kevin', 1: 'van', 2: 'Zonneveld'})
// returns 4: false
// example 5: is_array(function tmp_a (){ this.name = 'Kevin' })
// returns 5: false
var _getFuncName = function _getFuncName(fn) {
var name = /\W*function\s+([\w$]+)\s*\(/.exec(fn);
if (!name) {
return '(Anonymous)';
}
return name[1];
};
var _isArray = function _isArray(mixedVar) {
// return Object.prototype.toString.call(mixedVar) === '[object Array]';
// The above works, but let's do the even more stringent approach:
// (since Object.prototype.toString could be overridden)
// Null, Not an object, no length property so couldn't be an Array (or String)
if (!mixedVar || (typeof mixedVar === 'undefined' ? 'undefined' : _typeof(mixedVar)) !== 'object' || typeof mixedVar.length !== 'number') {
return false;
}
var len = mixedVar.length;
mixedVar[mixedVar.length] = 'bogus';
// The only way I can think of to get around this (or where there would be trouble)
// would be to have an object defined
// with a custom "length" getter which changed behavior on each call
// (or a setter to mess up the following below) or a custom
// setter for numeric properties, but even that would need to listen for
// specific indexes; but there should be no false negatives
// and such a false positive would need to rely on later JavaScript
// innovations like __defineSetter__
if (len !== mixedVar.length) {
// We know it's an array since length auto-changed with the addition of a
// numeric property at its length end, so safely get rid of our bogus element
mixedVar.length -= 1;
return true;
}
// Get rid of the property we added onto a non-array object; only possible
// side-effect is if the user adds back the property later, it will iterate
// this property in the older order placement in IE (an order which should not
// be depended on anyways)
delete mixedVar[mixedVar.length];
return false;
};
if (!mixedVar || (typeof mixedVar === 'undefined' ? 'undefined' : _typeof(mixedVar)) !== 'object') {
return false;
}
var isArray = _isArray(mixedVar);
if (isArray) {
return true;
}
var iniVal = (typeof require !== 'undefined' ? require('../info/ini_get')('locutus.objectsAsArrays') : undefined) || 'on';
if (iniVal === 'on') {
var asString = Object.prototype.toString.call(mixedVar);
var asFunc = _getFuncName(mixedVar.constructor);
if (asString === '[object Object]' && asFunc === 'Object') {
// Most likely a literal and intended as assoc. array
return true;
}
}
return false;
};
//# sourceMappingURL=is_array.js.map
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