(function ($){ 
var plugin = { 
}
; 
var checkIfAllArgumentsAreArrays = function (functionArguments){ 
for (var i = 0; 
i < _AN_Read_length('length', functionArguments); i++ ){ 
if (!(functionArguments[i] instanceof Array)) { 
throw new Error('Every argument must be an array!')
} 
} 
} 
; 
plugin.distinct = function (array){ 
if (_AN_Read_length('length', arguments) != 1) throw new Error('There must be exactly 1 array argument!')
checkIfAllArgumentsAreArrays(arguments); 
var result = [] ; 
for (var i = 0; 
i < _AN_Read_length('length', array); i++ ){ 
var item = array[i]; 
if ($.inArray(item, result) === -1) { 
result.push(item); 
} 
} 
return result; 
} 
; 
plugin.union = function (){ 
if (_AN_Read_length('length', arguments) < 2) throw new Error('There must be minimum 2 array arguments!')
checkIfAllArgumentsAreArrays(arguments); 
var result = this.distinct(arguments[0]); 
for (var i = 1; 
i < _AN_Read_length('length', arguments); i++ ){ 
var arrayArgument = arguments[i]; 
for (var j = 0; 
j < _AN_Read_length('length', arrayArgument); j++ ){ 
var item = arrayArgument[j]; 
if ($.inArray(item, result) === -1) { 
result.push(item); 
} 
} 
} 
return result; 
} 
; 
plugin.intersect = function (){ 
if (_AN_Read_length('length', arguments) < 2) throw new Error('There must be minimum 2 array arguments!')
checkIfAllArgumentsAreArrays(arguments); 
var result = [] ; 
var distinctArray = this.distinct(arguments[0]); 
if (_AN_Read_length('length', distinctArray) === 0) return [] ; 
for (var i = 0; 
i < _AN_Read_length('length', distinctArray); i++ ){ 
var item = distinctArray[i]; 
var shouldAddToResult = true ; 
for (var j = 1; 
j < _AN_Read_length('length', arguments); j++ ){ 
var array2 = arguments[j]; 
if (_AN_Read_length('length', array2) == 0) return [] ; 
if ($.inArray(item, array2) === -1) { 
shouldAddToResult = false ; 
break ; 
} 
} 
if (shouldAddToResult) { 
result.push(item); 
} 
} 
return result; 
} 
; 
plugin.except = function (){ 
if (_AN_Read_length('length', arguments) < 2) throw new Error('There must be minimum 2 array arguments!')
checkIfAllArgumentsAreArrays(arguments); 
var result = [] ; 
var distinctArray = this.distinct(arguments[0]); 
var otherArraysConcatenated = [] ; 
for (var i = 1; 
i < _AN_Read_length('length', arguments); i++ ){ 
var otherArray = arguments[i]; 
otherArraysConcatenated = otherArraysConcatenated.concat(otherArray); 
} 
for (var i = 0; 
i < _AN_Read_length('length', distinctArray); i++ ){ 
var item = distinctArray[i]; 
if ($.inArray(item, otherArraysConcatenated) === -1) { 
result.push(item); 
} 
} 
return result; 
} 
; 
$.arrayUtilities = plugin; 
$.distinct = plugin.distinct; 
$.union = plugin.union; 
$.intersect = plugin.intersect; 
$.except = plugin.except; 
} 
(jQuery));