I know that json.stringify() function converts a json object to json string.
json.stringify({x:9})
this will return string "{"x" : 9}"
But is there a way to convert a simple string into json format? For example i want this
var str = '{x: 9}'
json.stringify(str) //"{"x" : 9}"
With a proper format of string, you can use JSON.parse.
var str = '{"x" : 9}',
obj = JSON.parse(str);
document.write('<pre>' + JSON.stringify(obj, 0, 4) + '</pre>'); If you are using jQuery then you can use $.parseJSON See http://api.jquery.com/jquery.parsejson/
Can also visit Parse JSON in JavaScript?
First solution using eval:
const parseRelaxedJSON = (str) => eval('(_ => (' + str + '))()')
JSON.stringify(parseRelaxedJSON('{x: 5}'))
(_ => (' + str + '))() is a self-executing anonymous function. It is necessary for eval to evaluate strings similar to {x: 5}. This way eval will be evaluating the expression function (_ => ({x: 5}))() which if you're not familiar with ES6 syntax is equivalent to:
(function() {
return {x: 5}
})()
Second solution: using a proper 'relaxed' JSON parser like JSON5
JSON.stringify(JSON5.parse('{x: 2}'))
var str = '{"x": 9}'; var obj= JSON.parse(str)