Send data after enter

$('#qty_part').keypress(function(e){
    if(cek_class != 'form-group col-sm-3 collapse show')
    {
        var part_code = $('#part_code').val();
        var pl_unix = $('#pl_unix').val();

        $.ajax({
            type: "post",
            url: "<?= site_url('picking/scan') ?>",
            data: {
                pl_unix : pl_unix,
                part_code: part_code
            },
            dataType: "json",
            success: function(response){
                var Toast = Swal.mixin({
                    toast: true,
                    position: 'top-end',
                    showConfirmButton: false,
                    timer: 7000
                });

                if(response.respon === 1)
                {
                    // console.log(response.data);
                    // console.log(response.d);
                    // console.log(response.res.tampil_detail);
                    // alert('Part Code' + ' ' + response.data);
                    // $('.view_data').html(response.res);
                    $('#part_code').val('');
                    $('#part_code').focus();

                    $("#table_picking tbody").empty();
                    $("#res_div").empty();
                    $("#after_check").empty();
                    $("#before_check").empty();
                    $("#after_check").html(response.res.after_scan);
                    $("#before_check").html(response.res.before_scan);
                    if(response.res.result == 'Open')
                    {
                        $('#res_div').append('<label for="result">Result : </label>&nbsp;<span class="description-text badge badge-danger" id="results">'+response.res.result+'</span>')
                    }else if(response.res.result == "Close"){
                        $('#res_div').append('<label for="result">Result : </label>&nbsp;<span class="description-text badge badge-success" id="results">'+response.res.result+'</span>')
                    }

                    var r = '';
                    var tr = '';
                    $.each(response.res.tampil_detail, function(i, item) {
                        if(item.dt_result == "Open")
                        {
                        r = '<span class="badge badge-danger">'+ item.dt_result +'</span>';
                        }else if(item.dt_result == "Close"){
                        r = '<span class="badge badge-success">'+ item.dt_result +'</span>';
                        }

                        tr += '<tr align="center"><td>'+ item.dt_part_code +
                            '</td><td>' + item.dt_part_name +
                            '</td><td>' + item.dt_part_wh_code +
                            '</td><td>' + item.dt_lot_qty +
                            '</td><td>' + item.dt_qty_pcs +
                            '</td><td>' + item.dt_qty_reel +
                            '</td><td>' + item.dt_tot_scan +
                            '</td><td>' + item.dt_has_scan +
                            '</td><td>' + r +
                            '</td></tr>';
                    });
                    $('#table_picking tbody').html(tr);

                    // console.log(wrap('<p>').html(tr));

                    $('#part_code').val(null);
                    //refresh dashboard
                    b_picking();
                    b_penerimaan();
                    f_picking();

                    Toast.fire({
                        icon: 'success',
                        title: 'Success',
                        text: response.data
                    });
                }else if(response.respon === 0){
                    $('#part_code').val(null);
                    Toast.fire({
                        icon: 'error',
                        title: 'Error',
                        text: response.data
                    });
                }
            },
            error: function(xhr, ajaxOptions, thrownError) {
                alert(xhr.status + "\n" + xhr.responseText + "\n" + thrownError);
            }
        });
        e.preventDefault();

    }else{
        $('#qty_part').keypress(function(e){
            var key = e.which;
            var jml_char_qty = $('#qty_part').val().length;
            var part_code = $('#part_code').val();
            var qty_part = $('#qty_part').val();
            var pl_unix = $('#pl_unix').val();

            if(key == 13)
            {
                var Toast = Swal.mixin({
                    toast: true,
                    position: 'top-end',
                    showConfirmButton: false,
                    timer: 7000
                });

                if(qty_part != "")
                {
                    $.ajax({
                        type: "post",
                        url: "<?= site_url('picking/additional') ?>",
                        data: {
                            pl_unix : pl_unix,
                            part_code: part_code,
                            qty_part: qty_part
                        },
                        dataType: "json",
                        success: function(response){
                            var Toast = Swal.mixin({
                                toast: true,
                                position: 'top-end',
                                showConfirmButton: false,
                                timer: 7000
                            });

                            if(response.respon === 1)
                            {
                                // console.log(response.data);
                                // console.log(response.d);
                                // console.log(response.res.tampil_detail);
                                // alert('Part Code' + ' ' + response.data);
                                // $('.view_data').html(response.res);
                                $('#part_code').val('');
                                $('#qty_part').val('');
                                $('#part_code').focus();
                                // $('#additional').removeClass('show');

                                $("#table_picking tbody").empty();
                                $("#res_div").empty();
                                $("#after_check").empty();
                                $("#before_check").empty();
                                $("#after_check").html(response.res.after_scan);
                                $("#before_check").html(response.res.before_scan);
                                if(response.res.result == 'Open')
                                {
                                    $('#res_div').append('<label for="result">Result : </label>&nbsp;<span class="description-text badge badge-danger" id="results">'+response.res.result+'</span>')
                                }else if(response.res.result == "Close"){
                                    $('#res_div').append('<label for="result">Result : </label>&nbsp;<span class="description-text badge badge-success" id="results">'+response.res.result+'</span>')
                                }

                                var r = '';
                                var tr = '';
                                $.each(response.res.tampil_detail, function(i, item) {
                                    if(item.dt_result == "Open")
                                    {
                                    r = '<span class="badge badge-danger">'+ item.dt_result +'</span>';
                                    }else if(item.dt_result == "Close"){
                                    r = '<span class="badge badge-success">'+ item.dt_result +'</span>';
                                    }

                                    tr += '<tr align="center"><td>'+ item.dt_part_code +
                                        '</td><td>' + item.dt_part_name +
                                        '</td><td>' + item.dt_part_wh_code +
                                        '</td><td>' + item.dt_lot_qty +
                                        '</td><td>' + item.dt_qty_pcs +
                                        '</td><td>' + item.dt_qty_reel +
                                        '</td><td>' + item.dt_tot_scan +
                                        '</td><td>' + item.dt_has_scan +
                                        '</td><td>' + r +
                                        '</td></tr>';
                                });
                                $('#table_picking tbody').html(tr);

                                // console.log(wrap('<p>').html(tr));

                                $('#part_code').val(null);
                                $('#qty_part').val(null);
                                //refresh dashboard
                                b_picking();
                                b_penerimaan();
                                f_picking();

                                Toast.fire({
                                    icon: 'success',
                                    title: 'Success',
                                    text: response.data
                                });
                                console.log('ok');
                            }else if(response.respon === 0){
                                $('#part_code').val(null);
                                Toast.fire({
                                    icon: 'error',
                                    title: 'Error',
                                    text: response.data
                                });
                            }
                        },
                        error: function(xhr, ajaxOptions, thrownError) {
                            alert(xhr.status + "\n" + xhr.responseText + "\n" + thrownError);
                        }
                    });
                    // e.preventDefault();
                }else{
                    Toast.fire({
                        icon: 'error',
                        title: 'Error',
                        text: 'Qty part tidak boleh kosong'
                    });
                }
            }
        });
    }