javascript json to array

// Imagine we received this text from a web server:
'{ "name":"John", "age":30, "city":"New York"}'

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

// OR
var string = '{ "name":"John", "age":30, "city":"New York"}';
var obj = JSON.parse(string);

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

const json = '{ "fruit": "pineapple", "fingers": 10 }';
const obj = JSON.parse(json);
console.log(obj.fruit, obj.fingers);

JSON.parse()

// Replace '{ "name":"John", "age":30, "city":"New York"}' by your JSON, or a variable.
var obj = JSON.parse('{ "name":"John", "age":30, "city":"New York"}'); 

var as = JSON.parse(jstring);