Send multiple value from a form to Play server

[plouf142]

Hello,

I builds a form to serve a play server. This framework use this method to get multiple values

So, with setValueAsArray property to true, I have to get this script before sending data :

let form = new FormData(htmlContent);
if (!!form.get("vs_input_value"))
  JSON.parse(form.get("vs_input_value")).forEach((u, i) =>
    form.set(`vs_input_value[${i}].id`, u)
  );

Is there a better method?