convet data to json string code example
Example: 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"