function invullenFormulier() {
const ss = SpreadsheetApp.getActiveSpreadsheet();
const sheet = ss.getSheetByName('Allen');
const data = sheet.getDataRange().getValues();
data.shift();
//console.log(data);
const formulierURL = ss.getFormUrl();
const formulier = FormApp.openByUrl(formulierURL);
const items = formulier.getItems();
for (let i = 0; i < data.length; i++) {
const formResponse = formulier.createResponse();
//invullen email?????
//How can i access the field emailadress?
//invullen voornaam, this is OK!
let formItem = items[0].asTextItem();
let response = formItem.createResponse(data[i][1]);
formResponse.withItemResponse(response);
//invullen familienaam, this is OK!
formItem = items[1].asTextItem();
response = formItem.createResponse(data[i][0]);
formResponse.withItemResponse(response);
const url = formResponse.toPrefilledUrl();
console.log(url);
}
}