javascript - 如何在 Node js 中从 json 格式中拆分字符串

Question

我是 Node.js 的新手，这是我的示例 json 格式数据。我想将它们拆分成 json 格式，需要获取 tid 值。在 node.js 中，我尝试使用 JSON.parse(data) 但它发生了错误(因为 [] 符号)。有没有一种简单的方法将它们拆分成json格式并获取tid值？

[{"date":1535624757,"date_ms":1535624757427,"amount":90.389717,"price":0.00860497,"type":"buy","tid":251916659},{"date":1535624757,"date_ms":1535624757428,"amount":99.428689,"price":0.00860497,"type":"buy","tid":251916662},{"date":1535624757,"date_ms":1535624757469,"amount":384.65968,"price":0.00860497,"type":"buy","tid":251916663}]

Answer 1

JSON.parse 接受一个字符串变量，

[
    {
        "date": 1535624757,
        "date_ms": 1535624757427,
        "amount": 90.389717,
        "price": 0.00860497,
        "type": "buy",
        "tid": 251916659
    },
    {
        "date": 1535624757,
        "date_ms": 1535624757428,
        "amount": 99.428689,
        "price": 0.00860497,
        "type": "buy",
        "tid": 251916662
    },
    {
        "date": 1535624757,
        "date_ms": 1535624757469,
        "amount": 384.65968,
        "price": 0.00860497,
        "type": "buy",
        "tid": 251916663
    }
]

您管理的这段代码是对象变量。

你可以用这个

var data = JSON.parse('[{"date":1535624757,"date_ms":1535624757427,"amount":90.389717,"price":0.00860497,"type":"buy","tid":251916659},{"date":1535624757,"date_ms":1535624757428,"amount":99.428689,"price":0.00860497,"type":"buy","tid":251916662},{"date":1535624757,"date_ms":1535624757469,"amount":384.65968,"price":0.00860497,"type":"buy","tid":251916663}]')
console.log(data)