const input_code = document.querySelector('.code_activation'); const btn_activation_account = document.querySelector('.btn_registrtation_user'); btn_activation_account.addEventListener('click', ()=>{ $.ajax({ method: "POST", url: "public/activationCode.php", dataType: 'json', data: { ActiveCode: input_code.value } }).done(function( obj ) { if('Status' in obj){ if(obj.Status === "Welldone"){ console.log(obj.Status); window.location.href = 'authorisation_page.html'; } }else{ alert(obj.Error); } }); })