About JSON objects in JS, JSON strings, converting between arrays

Convert a JSON object to a string

var loginuser = {username:username, Password:password}
Way One Localstorage.setitem (json.stringify (loginuser));
Way Two

Localstorage.setitem ("Loginuser",loginuser.tojsonstring ());

Convert a string to a JSON object

// Way One var obj = eval (' (' + str + ') '); // Mode two var obj = loginuser.parsejson (); // Way Three var obj = Json.parse (loginuser);

Array into string

var array = [n/a];
String str = json.stringify (array);

Temporarily understand the

About JSON objects in JS, JSON strings, converting between arrays