The role of Json.parse and json.stringify

Json.parse Convert string format JSON to JSON object
var str= ' {' name ': ' Lingling ', ' age ': ' 26 '} ';

Console.log (Json.parse (str));
Output: object{name: "Lingling", Age: "26"}
Note: str must be double quotation marks for each attribute name, otherwise it will be error;

Json.stringify () Converts a JSON object into a string format
var a={a:1,b:2};

var b=json.stringify (a);

Console.log (Json.stringify (a));
Output: {"A": "1", "B": "2"}

Console.log (typeof (b));
Output: String

The role of Json.parse and json.stringify