HTML Form Post JSON Ejemplo
submitButton.addEventListener("submit", (event) => {
const formData = new FormData(event.target);
// object used to collect form data
const objToSend = new Object();
formData.forEach((value, key) => {
if (!Reflect.has(objToSend, key)) {
// property key encountered for first time
Reflect.set(objToSend, key, value);
} else {
if (!Array.isArray(objToSend[key])) {
// convert value into array
objToSend[key] = [objToSend[key]];
}
// add new value to array
objToSend[key].push(value);
}
});
// Stringify object holding form data
const objAsJSON = JSON.stringify(objToSend);
console.log(objAsJSON);
});
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