Question

JavaScript新手，对JS对象知之甚少。我希望得到两个JS对象的区别。

a=[{"month":1,"year":2015},{"month":2,"year":2015},{"month":3,"year":2015},{"month":4,"year":2015},{"month":5,"year":2015}];
b=[{"month":1,"year":2015},{"month":2,"year":2015},{"month":5,"year":2015}];

我梦寐以求的结果应该是

result=[{"month":3,"year":2015},{"month":4,"year":2015}];

我使用JSON.stringify获得了上述格式。

Answer 1

下面应该适合你，只需在数组上使用filter。

var a=[{"month":1,"year":2015},{"month":2,"year":2015},{"month":3,"year":2015},{"month":4,"year":2015},{"month":5,"year":2015}];
var b=[{"month":1,"year":2015},{"month":2,"year":2015},{"month":5,"year":2015}];

var diff = a.filter(function(a){
    return b.filter(function(b){
        return b.month == a.month && b.year == a.year
    }).length == 0
});

console.log(diff);

如何获得两个JS对象的区别

1 个答案: