Question

我有以下JSON数组：

[ 
    { id: 1, name: "P1", group_id: 1.1, group_name: "G1.1"},
    { id: 1, name: "P1", group_id: 1.2, group_name: "G1.2"},
    { id: 2, name: "P2", group_id: 1.1, group_name: "G2.1"},
    { id: 2, name: "P2", group_id: 1.1, group_name: "G2.2"},
]

使用Javascript ES6将其转换为以下结构的最有效方法是什么？

dict(zip(col1,col2))

Answer 1

有一些问题。

如果它是一个json数组，它应该是这样的。

def apply_python_func(ds, func, sess):
    """Exact values from ds using sess and apply func on them"""
    it = ds.make_one_shot_iterator()
    next_value = it.get_next()
    num_examples = 0
    while True:
        try:
            value = sess.run(next_value)
            num_examples += 1
            func(value)
        except tf.errors.OutOfRangeError:
            break
    print('Evaluated {} examples'.format(num_examples))

you can validate json arrays using this link

对你的输出有点困惑。这就是它投票的原因。

设置数组后，您可以使用var obj = [{ "id": 1, "name": "P1", "groups": [{ "id": 1.1, "name": "G1.1" }, { "id": 1.2, "name": "G1.2" }] }, { "id": 2, "name": "P2", "groups": [{ "id": 2.1, "name": "G2.1" }, { "id": 2.2, "name": "G2.2" }] } ];。

＆＃13;

ForEach

＆＃13;

Answer 2

您可以使用forEach来实现此目的。请尝试以下方法：

var arr=[  
    { id: 1, name: "P1", groups: [ { id: 1.1, name: "G1.1" }, { id: 1.2, name:"G1.2" }]}, 
    { id: 2, name: "P2",  groups: [ { id: 2.1, name: "G2.1" }, { id: 2.2, name:"G2.2" }]}
];


result = [];

arr.forEach((o)=>{
  o.groups.forEach((group)=>{
    result.push({
      "id" : o.id,
      "name" : o.name,
      "group_id" : group.id,
      "group_name" : group.name
    });
  });
});

console.log(result);

使用javascript压平嵌套的json数组

2 个答案: