add function in dropdown options list

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hello dear members, I would like to know how to allow an option of a drop-down menu to make a specific action (update, insert or delete) in my form. Put function on an element of the drop-down menu to updates, insertions

I imagined 

import wixData from wixData;

if(($w('#myDropdownClasse').option = label2)).on_click (event) {
let toInsert = { "CE1A" : $w.('#input1').value,
               "CE1A" : $w.('#input2').value,
               }
             wix.update ("StatistiqueCE1A",  toInsert) 
           .then((results) => {
          console.log(results);    
          } )
            .catch((err) => { 
            console.log (err);
            }
            );
            }