Question

我试图获得一个价值＆＃34;状态＆＃34;来自＆＃34;客户＆＃34;使用这个简单的脚本对象：

console.log(JSON.stringify(customer.subscriptions.data.plan.status));

当我执行此功能时，控制台会返回我：

TypeError: Cannot read property 'data' of undefined

＆＃34;顾客＆＃34;对象：

customer: {
"object":"customer",
"created":xxxxxx,
"id":"xxxxxxx",
"livemode":false,
"description":null,
"email":"xxxx@xxxx.com",
"shipping":null,
"delinquent":false,
"metadata":{},
"subscriptions":{
    "object":"list",
    "total_count":1,
    "has_more":false,
    "url":"/v1/customers/xxxxxxxxx/subscriptions",
    "data":[{
        "id":"xxxxxxxxx",
        "plan":{
            "interval":"month",
            "name":"xxxxxx",
            "created":xxxxx,
            "amount":xxxxx,
            "currency":"eur",
            "id":"6month",
            "object":"plan",
            "livemode":false,
            "interval_count":6,
            "trial_period_days":null,
            "metadata":{},
            "statement_descriptor":null,
            "statement_description":null},
            "object":"subscription",
            "start":xxxxx,
            "status":"active",
            ...,

请帮帮我。感谢。

Answer 1

错误与数据不匹配。应该是它无法读取未定义的status。这是因为customer确实有subscriptions，而subscriptions 确实有data，但是您正在处理data好像它有一个plan属性，但它并没有。 data指的是数组，其第一个条目具有plan属性。另请注意，status不是plan的属性，它是plan属性的同一对象的属性。

因此，访问第一个条目的status将是：

customer.subscriptions.data[0].status
// Note -------------------^^^

如果data中有后续条目，则它们将位于索引1,2,3等处。

示例：

＆＃13;

var customer = {
  "object": "customer",
  "created": "xxxxxx",
  "id": "xxxxxxx",
  "livemode": false,
  "description": null,
  "email": "xxxx@xxxx.com",
  "shipping": null,
  "delinquent": false,
  "metadata": {},
  "subscriptions": {
    "object": "list",
    "total_count": 1,
    "has_more": false,
    "url": "/v1/customers/xxxxxxxxx/subscriptions",
    "data": [
      {
        "id": "xxxxxxxxx",
        "plan": {
          "interval": "month",
          "name": "xxxxxx",
          "created": "xxxxx",
          "amount": "xxxxx",
          "currency": "eur",
          "id": "6month",
          "object": "plan",
          "livemode": false,
          "interval_count": 6,
          "trial_period_days": null,
          "metadata": {},
          "statement_descriptor": null,
          "statement_description": null
        },
        "object": "subscription",
        "start": "xxxxx",
        "status": "active"
      }
    ]
  }
};
document.body.innerHTML = customer.subscriptions.data[0].status;

＆＃13;

无法在Javascript，nodejs，条带库中获取Object的值

1 个答案: