convert to json javascript code example

Example 1: convert string to object javascript

var mystr = '{ "hello":"world" }' // NB: Has enclosing ""
var myobj = JSON.parse(mystr);

Example 2: js print object as json

var obj = {
  a: 1,
  b: 2,
  c: { d: 3, e: 4 } // object in object
};

// method 1 - simple output
console.log(JSON.stringify(obj)); // {"a":1,"b":2,"c":{"d":3,"e":4}}

// method 2 - more readable output
console.log(JSON.stringify(obj, null, 2)); // 2 - indent spaces. Output below
/*
{
  "a": 1,
  "b": 2,
  "c": {
    "d": 3,
    "e": 4
  }
}
*/

Example 3: change js to json

var obj = {name: "Martin", age: 30, country: "United States"};
 
// Converting JS object to JSON string
var json = JSON.stringify(obj);
 
console.log(json);
// Prints: {"name":"Martin","age":30,"country":"United States"} 
"https://www.tutorialrepublic.com/faq/how-to-convert-js-object-to-json-string.php"

Example 4: Javascript object to JSON string

var person={"first_name":"Tony","last_name":"Hawk","age":31};
var personJSONString=JSON.stringify(person);

Example 5: convert data into json format in javascript

Use the JavaScript function JSON.parse() to convert text into a JavaScript object:
var obj = JSON.parse('{ "name":"John", "age":30, "city":"New York"}');

Example 6: js string to json

var obj = JSON.parse("{no:'u',my:'sql'}");//returnes {no:'u',my:'sql'}