如何在JavaScript中将字符串对象转换为json对象

Question

我已将字符串格式的数据更改为类似于[对象对象]的格式，但我想将字符串对象更改为我尝试过json.parse的json对象，但未将其更改为json对象你能建议我哪里做错了以及如何解决这个问题try {  var timekeep = await Orders.findAndCountAll({    where: {      cid: orders_info.cid,    },    order: [      ['id', 'DESC']    ],    limit: 1,    raw: true,  });  var cont1 = JSON.stringify(timekeep.rows[0]);  var obj = JSON.parse(cont1);} catch (err) {  console.log(err)}console.log('org data' + timekeep)console.log('data as string' + cont1);// now when I am trying to printconsole.log('data as json' + obj);console.logs的输出org data [object Object]data as sttring{"id":4006,"mid":1,"cid":41,"wid":7138,"oid":null,"status":null,"options":null,"starttime":"2018-08-15T06:08:55.000Z","duration":null,"ordertotal":50,"counter":null,"closetime":null}data as json [object object]

Answer 1

据我所知，您已经将其转换为JSON var obj = JSON.parse(cont1);

因此，您已经有了一个JSON，只是您打印它的方式是错误的。以逗号代替+。

console.log('data as json', obj)

+正在执行字符串连接，并且正在尝试将字符串与对象连接

Answer 2

在String concat之后，它会打印data as json [object object]。如果您放置,而不是+将正确打印该对象。在摘要中，您可以看到不同之处。

var jsonstr = '{"id":4006,"mid":1,"cid":41,"wid":7138,"oid":null,"status":null,"options":null,"starttime":"2018-08-15T06:08:55.000Z","duration":null,"ordertotal":50,"counter":null,"closetime":null}';

console.log(JSON.parse(jsonstr));

console.log('data as json' , JSON.parse(jsonstr));

console.log('data as json' + JSON.parse(jsonstr));