Question

我想从javascript对象数组中删除一些属性。这是对象数组。

obj_array = [{
        "DATA_ID": 1,
        "DATA_NAME": "Jim",
        "DATA_BB_TYP": 2,
        "DATA_MAC": "5474",
    },
    {
        "DATA_ID": 3,
        "DATA_NAME": "Fro",
        "DATA_BB_TYP": 33,
        "DATA_MAC": "8e30",
    },
    {
        "DATA_ID": 2,
        "DATA_NAME": "Jimb",
        "DATA_BB_TYP": 2,
        "DATA_MAC": "45e8",
    },
    {
        "DATA_ID": 4,
        "DATA_NAME": "Kht1",
        "DATA_BB_TYP": 35,
        "DATA_MAC": "58d0",
    },
    {
        "DATA_ID": 6,
        "DATA_NAME": "Sens",
        "DATA_BB_TYP": 34,
        "DATA_MAC": "d004",
    }
]

我有这个字符串数组，它指定要删除的属性。

var str_array_criteria = ["DATA_BB_TYP", "DATA_MAC"];

删除后，对象数组将如下所示;

obj_array_removed = [{
        "DATA_ID": 1,
        "DATA_NAME": "Jim",        
    },
    {
        "DATA_ID": 3,
        "DATA_NAME": "Fro",
    },
    {
        "DATA_ID": 2,
        "DATA_NAME": "Jimb",
    },
    {
        "DATA_ID": 4,
        "DATA_NAME": "Kht1",
    },
    {
        "DATA_ID": 6,
        "DATA_NAME": "Sens",
    }
]

我正在使用node.js v6。

Answer 1

你走了，

＆＃13;

var obj_array = [{
        "DATA_ID": 1,
        "DATA_NAME": "Jim",
        "DATA_BB_TYP": 2,
        "DATA_MAC": "5474",
    },
    {
        "DATA_ID": 3,
        "DATA_NAME": "Fro",
        "DATA_BB_TYP": 33,
        "DATA_MAC": "8e30",
    },
    {
        "DATA_ID": 2,
        "DATA_NAME": "Jimb",
        "DATA_BB_TYP": 2,
        "DATA_MAC": "45e8",
    },
    {
        "DATA_ID": 4,
        "DATA_NAME": "Kht1",
        "DATA_BB_TYP": 35,
        "DATA_MAC": "58d0",
    },
    {
        "DATA_ID": 6,
        "DATA_NAME": "Sens",
        "DATA_BB_TYP": 34,
        "DATA_MAC": "d004",
    }
];

    var str_array_criteria = ["DATA_BB_TYP", "DATA_MAC"];

    var new_obj_array = obj_array.map(function(obj) {
      str_array_criteria.forEach(function(prop) {
        delete obj[prop];
      });
      
      return obj;
    });

    console.log(new_obj_array);

＆＃13;

Answer 2

您可以使用下划线实现此目的。它更加简单易读

obj_array.map(obj => _.omit(obj,["DATA_BB_TYP", "DATA_MAC"]))

从javascript对象数组中删除一些属性

2 个答案: