How to convert FormData (HTML5 object) to JSON

var object = {};
formData.forEach(function(value, key){
    object[key] = value;
});
var json = JSON.stringify(object);

// Or ES6 arrow function
var object = {};
formData.forEach((value, key) => object[key] = value);
var json = JSON.stringify(object);

var object = {};
formData.forEach(function(value, key){
    object[key] = value;
});
var json = JSON.stringify(object);