javascript - 如何在jquery中仅在2个数组之间查找公共(public)元素

Question

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Answer 1

Try this:

    var array1  = [1, 2, 3, 4, 5, 6],
    array2 = [1, 2, 3, 4, 5, 6, 7, 8, 9];

var common = $.grep(array1, function(element) {
    return $.inArray(element, array2 ) !== -1;
});

console.log(common); // returns [1, 2, 3, 4, 5, 6];



var array3 = array2.filter(function(obj) { return array1.indexOf(obj) == -1; });

// returns [7,8,9];