将几乎JSON字符串转换为JSON对象Javascript

Question

I have an string object like the following:

CustomData {
  href: 'https://api.stormpath.com/v1/accounts/fdsq/customData',
  createdAt: '2017-02-12T21:06:34.086Z',
  modifiedAt: '2017-02-14T20:36:45.879Z',
  ethereum_contract_address: '485dsq41g52fdsqqds',
  ethereum_provider: 'proqxy53fdsq.yoicsfdsqfdsq.net:31gky6736' }

I am trying to convert this string to a JSON object that I can then use properly. But i can't seem to convert this to a simple string that I could then substring and then parse to JSON.

Here is what i have attempted:

var rawString = req.user.customData;
console.log(rawString);
var stringJson = String(rawString).substring(0, 11);
console.log(stringJson.toString());
var customData = JSON.parse(stringJson);
console.log(customData);

I unfortunatly get stcuk on the JSON.parse, it seems like the string String(rawString) does not actually convert it to a string but only retruns [object Object].

Answer 1

You should use

JSON.stringify(jsonData);

then just simply parse

JSON.parse(jsonString)

Answer 2

You need JSON.stringigy(obj); to get a JSON-object of your data. Heres the code:

 var customData = { href: 'https://api.stormpath.com/v1/accounts/fdsq/customData', createdAt: '2017-02-12T21:06:34.086Z', modifiedAt: '2017-02-14T20:36:45.879Z', ethereum_contract_address: '485dsq41g52fdsqqds', ethereum_provider: 'proqxy53fdsq.yoicsfdsqfdsq.net:31gky6736' } console.log(customData); var stringJson = JSON.stringify(customData); console.log(stringJson); var customData = JSON.parse(stringJson); console.log(customData); 

Answer 3

CustomData is a JSON: It contains keys and values. JSON stands for JavaScript Object Notation . You confuse JSON with JSON string. From the former you can achieve the latter via

var JSONString = JSON.stringify(CustomData);

You can parse it via

JSON.parse(JSONString);

However, since your object is already a JSON, you should be able to use it properly, whatever that means in your scenario.