JAVASCRIPT

JSON to string

var sample  = {
	name: "Himansu Jangid",
  	github: "https://github.com/himanshurajora",
  	age: 19
}
var converted = JSON.stringify(sample);
// now the converted variable contains stringified json object in the single line
// ------------
// to keep the json structure 
converted = JSON.stringify(sample, null, '	');
// now the object will be stringified but the structure will remain same
// output - '{
	"name": "Himansu Jangid",
	"github": "https://github.com/himanshurajora",
	"age": 19
}'

JSOn to string

JSON.stringify()

Convert object to Json String

List<userdetails> details = new List<userdetails>();
userdetails user = new userdetails();
details.Add(new userdetails { userid = 1, username = "suresh", location = "chennai" });
string strserialize = JsonConvert.SerializeObject(details);