jquery sweetalert2

<script type="text/javascript">

        function akayit(){
            var eposta = $("input[name=eposta]").val();
            eposta = $.trim(eposta);

            var epostaconfirm = $("input[name=epostaconfirm]").val();
            epostaconfirm = $.trim(epostaconfirm);

        var pass = $("input[name=pass]").val();
            pass = $.trim(pass);

        if(eposta == ""){
            sweetAlert(
  'Oops...',
  'Please write your mail adress!',
  'warning'
);
        }else if(pass==""){
            sweetAlert(
  'Oops...',
  'Please write your password!',
  'warning'
);
        }else if(epostaconfirm==""){
            sweetAlert(
  'Oops...',
  'Please write again your email adress',
  'warning'
);
        }else if (eposta != epostaconfirm) {
            sweetAlert(
  'Oops...',
  'Your e-mail adress is wrong!',
  'warning'
);
        }

        else{
            var deger = "eposta="+eposta+"&pass="+pass;

            $.ajax({
                type : "POST",
                url  : "signup.php",
                data : deger,
                success : function(sonuc){
                    if(sonuc == "ok"){
                        swal(
  'Good job!',
  'You have successfully signed up!',
  'success'
);
                    }else if(sonuc =="hata"){
                        swal(
  'Ohh no!',
  'There is some mistake!',
  'error'
);
                    }else if(sonuc=="kayitlimail"){
                        swal(
  'Hoppa!',
  'This email adress already registered our system!',
  'warning'
);
                    }else if(sonuc=="hatalimail"){
                        swal(
  'Hoppa!',
  'This email format is wrong!',
  'warning'
);
                    }
                }
            })
        }
        }

    </script>