javascript - 使用 AJAX 读取 JSON 文件并将数据存储到数组中

Question

我想做的就是读取数据格式如下所示的 JSON 文件，并从节点中仅提取 id 并将其存储在数组中。

{"nodes":[
{"id":"1057457211927117824", "age":"20", "name":"a", "loaded":true},
{"id":"1057459284189970433", "age":"20", "name":"b", "loaded":true}
]
"links":[
{"id":"l01", "from":"1057457210467540992", "to":"1057455883972722689", "type":"friend"},
{"id":"l02", "from":"1057457271331057664", "to":"1057451606344646656", "type":"friend"}
]}

下面是我尝试过的代码，但它不起作用。

var node_id = []; 
$.getJSON("data/newData.json", function (data) {
    $.each(data, function (index, value) {
        node_id.push(value[0]['id']); 
    });
});

Answer 1

如果我理解你的话，你可以看看下面的代码:

var jsonData = {
"nodes":[
  {"id":"1057457211927117824", "age":"20", "name":"a", "loaded":true},
  {"id":"1057459284189970433", "age":"20", "name":"b", "loaded":true}],
"links":[
  {"id":"l01", "from":"1057457210467540992", "to":"1057455883972722689", "type":"friend"},
  {"id":"l02", "from":"1057457271331057664", "to":"1057451606344646656", "type":"friend"}
]};

var node_id = []; 
$.each(jsonData.nodes, function (index, value) {
    node_id.push(value['id']); 
});

console.log(node_id);
    

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