Question

我希望使用JavaScript

从以下字符串中获取caller_id的值

{"dispnumber": "+XXXXXXXXXX", "extension": "1", "callid": "b7d14b81-68cf-4250-b5f2-fe486ef7b0b6", "destination": "+911762503777", "caller_id": "+91XXXSSSSSS", "action": "phone", "event": "connected"}

我该怎么做？

Answer 1

您显示的数据看起来像是有效的JSON数据。只需像这样解析它

var obj = JSON.parse(string_data);

将为您提供有效的JavaScript对象，然后您可以获得caller_id这样的属性

console.log(obj.caller_id);
# +91XXXSSSSSS

Answer 2

尝试这样的事情

    // if it is javscript object 
    var obj = {"dispnumber": "+XXXXXXXXXX", "extension": "1", "callid": "b7d14b81-68cf-4250-b5f2-fe486ef7b0b6", "destination": "+911762503777", "caller_id": "+91XXXSSSSSS", "action": "phone", "event": "connected"};
    obj.caller_id;//+91XXXSSSSSS

    // if it is string
    var str = '{"dispnumber": "+XXXXXXXXXX", "extension": "1", "callid": "b7d14b81-68cf-4250-b5f2-fe486ef7b0b6", "destination": "+911762503777", "caller_id": "+91XXXSSSSSS", "action": "phone", "event": "connected"}';
    var obj = JSON.parse(str);
    obj.caller_id;//+91XXXSSSSSS

Answer 3

我们可以将字符串分配给变量，并将其视为对象。使用objectname.keyname，即（json.caller_id），我们可以获得值。

    <!DOCTYPE html>
    <html>
    <body>
    <script> 
      var json = {"dispnumber": "+XXXXXXXXXX", "extension": "1", "callid": "b7d14b81-68cf-4250-              b5f2-fe486ef7b0b6","destination": "+911762503777", "caller_id": "+91XXXSSSSSS", "action": "phone", "event": "connected"};
      alert(json.caller_id);
    </script>
    </body>
    </html>

我们也可以通过使它成为字符串并使用JSON.parse转换为对象

来获取值

    <!DOCTYPE html>
    <html>
    <body>
    <script> 
      var obj = '{"dispnumber": "+XXXXXXXXXX", "extension": "1", "callid": "b7d14b81-68cf-4250-              b5f2-fe486ef7b0b6","destination": "+911762503777", "caller_id": "+91XXXSSSSSS", "action": "phone", "event": "connected"}';
      var json = JSON.parse(obj);
      alert(json.caller_id);
    </script>
    </body>
    </html>

在JavaScript中拆分字符串

3 个答案: