Comparaison et filtrage de deux tableaux
var array1 = ['apples', 'grapes', 'oranges', 'banana'],
array2 = ['potato', 'pears', 'grapes', 'berries', 'apples', 'oranges'];
var intersection = array1.filter(function(e) {
return array2.indexOf(e) > -1;
});
console.log(intersection);
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