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Check added and removed items from two different arrays
function checkArrayDifferences (array1, array2) {
"use strict";
var removed = $(array1).not(array2).get(),
added = $(array2).not(array1).get();
return {'removed': removed, 'added': added};
var array1 = [1,2,3,4],
array2 = [2,3,6],
differences = checkArrayDifferences(array1, array2);
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