node.js - 从 javascript 对象数组中删除一些属性

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",
    }
]

我有一个字符串数组，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",
    }
]

我使用的是node.js v6。

Answer 1

您可以使用下划线来实现此目的。它更简单且更具可读性

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