如何在对象Javascript数组内过滤数组对象？

Pratik Sawant

我想，以滤除列表产品

const questions = [
    { "id": 2616, "offerings": [{"code": "AA"},{"code": "AB"}]},
    { "id": 1505, "offerings": [{"code": "AA"},{"code": "ABC"}]},
    { "id": 1500, "offerings": [{"code": "AC"},{"code": "DC"}]}
];

const filterByArray = ['AB', 'DC'];

我的预期结果是根据filterByArray中传递的内容取回所有数组元素

[
    { "id": 2616, "offerings": [{"code": "AA"},{"code": "AB"}]},
    { "id": 1500, "offerings": [{"code": "AC"},{"code": "DC"}]}
]

我尝试使用过滤数组

var filtered = questions.filter(function(element) {
    return element.offerings.filter(function(cd) {
       return filterByArray.indexOf(cd.code) > -1;
    }).length === filterByArray.length;
});

console.log(filtered)

但这会继续返回所有数组元素。

王伟

使用Array.some（）和Array.includes（）。

const questions = [
    { "id": 2616, "offerings": [{"code": "AA"},{"code": "AB"}]},
    { "id": 1505, "offerings": [{"code": "AA"},{"code": "ABC"}]},
    { "id": 1500, "offerings": [{"code": "AC"},{"code": "DC"}]}
];

const filterByArray = ['AB', 'DC'];

const output = questions.filter(q => q.offerings.some(o => filterByArray.includes(o.code)));

console.log(output);

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