JAVASCRIPT

Convert JSON String to JavaScript Object

<script>
  // Convert JSON String to JavaScript Object
  var JSONString = '[{"name":"Jonathan Suh","gender":"male"},{"name":"William Philbin","gender":"male"},{"name":"Allison McKinnery","gender":"female"}]';

  var JSONObject = JSON.parse(JSONString);
  console.log(JSONObject);      // Dump all data of the Object in the console
  alert(JSONObject[0]["name"]); // Access Object data
</script>

Javascript object to JSON string

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

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"

Converting JSON to JavaScript Object

// json object
const jsonData = '{ "name": "John", "age": 22 }';

// converting to JavaScript object
const obj = JSON.parse(jsonData);

// accessing the data
console.log(obj.name); // John

js json to object

var jsonPerson = '{"first_name":"billy", "age":23}';
var personObject = JSON.parse(jsonPerson); //parse json string into JS object

Converting JavaScript Object to JSON

// JavaScript object
const jsonData = { "name": "John", "age": 22 };

// converting to JSON
const obj = JSON.stringify(jsonData);

// accessing the data
console.log(obj); // "{"name":"John","age":22}"

Javascript object convert into JSON

const person = {
    name: 'labib',
    age: 22,
    job: 'web-developer',
    frieds: ['ahsik', 'abir', 'alvi', 'hanafi'],
    childList: {
        firstChild: 'Salman',
        secondChild: 'Rafi',
        thirdChild: 'Anfi'
    }
}
const convertJson = JSON.stringify(person)
console.log(convertJson)
//Expected output:
/*
{"name":"labib","age":22,"job":"web-developer","frieds":["ahsik","abir","alvi","hanafi"],"childList":{"firstChild":"Salman","secondChild":"Rafi","thirdChild":"Anfi"}}
 */

how to convert json to javascript object

local storage JSON.parse