请问大家，这个小算法怎么处理

  • Z时代
  • 2024-02-24
  • 分类：IT

请问大家，这个小算法怎么处理

var arr1 = ['27709', '29406', '29407', '29408', '29409', '29410', '29411', '29412', '29414', '29415']
var arr2 = [
    {
        "goods_id": "29416",
        "goods_sn": "10088011100050",
        "goods_number": "105",
    },
    {
        "goods_id": "29417",
        "goods_sn": "10088011100059",
        "goods_number": "0",
    },
    {
        "goods_id": "29420",
        "goods_sn": "10088011100070",
        "goods_number": "0",
    },
    {
        "goods_id": "29424",
        "goods_sn": "10088011100081",
        "goods_number": "0",
    },
    {
        "goods_id": "29425",
        "goods_sn": "JX10088011100085",
        "goods_number": "0",
    },
    {
        "goods_id": "29426",
        "goods_sn": "10088011100090",
        "goods_number": "0",
    },
    {
        "goods_id": "29427",
        "goods_sn": "10088011100092",
        "goods_number": "0",
    },
    {
        "goods_id": "29428",
        "goods_sn": "10088011100094",
        "goods_number": "0",
    },
    {
        "goods_id": "29429",
        "goods_sn": "10088011100095",
        "goods_number": "0",
    },
    {
        "goods_id": "29430",
        "goods_sn": "10088011100096",
        "goods_number": "0",
    },
    {
        "goods_id": "29416",
        "goods_sn": "10088011100050",
        "goods_number": "0",
    },
    {
        "goods_id": "29417",
        "goods_sn": "10088011100059",
        "goods_number": "0",
    },
    {
        "goods_id": "29420",
        "goods_sn": "10088011100070",
        "goods_number": "0",
    },
    {
        "goods_id": "29424",
        "goods_sn": "10088011100081",
        "goods_number": "0",
    },
    {
        "goods_id": "29425",
        "goods_sn": "10088011100085",
        "goods_number": "0",
    },
    {
        "goods_id": "29426",
        "goods_sn": "10088011100090",
        "goods_number": "0",
    },
    {
        "goods_id": "29427",
        "goods_sn": "10088011100092",
        "goods_number": "0",
    },
    {
        "goods_id": "29428",
        "goods_sn": "10088011100094",
        "goods_number": "0",
    },
    {
        "goods_id": "29429",
        "goods_sn": "10088011100095",
        "goods_number": "0",
    },
    {
        "goods_id": "29430",
        "goods_sn": "10088011100096",
        "goods_number": "0",
    }
]

上面两个数组，

我想根据arr1数组里的数字，去和arr2中的goods_id 进行匹配，如果arr1的数组数字有和arr2中的goods_id 相等的话，就过滤掉这些相等的数据，返回出不相等数据，请问该怎么写，

回答：

var arr3 = arr1.filter((item) => !arr2.some((i) => i.goods_id === item));
console.log(arr3);

回答：

function filter(data, id) {
    var ret = []
    loop: for (var i = 0; i < data.length; ++i) {
        for (var j = 0; j < id.length; ++j) {
            if (data[i].goods_id === id[j]) {
                continue loop;
            }
        }
        ret.push(data[i]);
    }
    return ret;
}
console.dir(filter(arr2, arr1));

回答：

用arr2过滤arr1

arr1.filter(id => !arr2.some(item => item.goods_id === id))

回答：

var arr3 = new Set(arr1)
arr2.filter(i => !arr3.has(i.goods_id))

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