使用AJAX读取JSON文件并将数据存储到数组

Question

All I am trying to do is reading an JSON file with data format as shown below and extract only id from nodes and store it in an array.

{"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"}
]}

Below is the code I tried but its not working.

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

Answer 1

If I understand you, you can look at the code below:

 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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