Add row to Grid question

[Franco01Participant]

I want to add rows to my grid in the following code:

addButton.click(function (event) {
                        var rows = $("#Grid").jqxGrid('getrows');
                        if (rows.length != 5) {
                            if (!addButton.jqxButton('disabled')) {
                                var dat=null;
                                // add new empty row.
                                if (rows.length != 0) {
                                    var d = rows[rows.length - 1].Date;
                                    
                                    if (typeof (d) == "string") {
                                        var dat = new Date(d
                                            .substr(0, 4) +
                                            "-" +
                                            d.substr(5, 2) +
                                            "-" +
                                            d.substr(8, 2));
                                    } else {
                                        dat = d;
                                    }
                                    dat.setDate(dat.getDate() + 1);
                                }
                                $("#Grid").jqxGrid('addRow', null, { Date: dat });
                            }
                        }
                    });

I would like to add 1 day to the previous rows Date value.
It’s work perfectly for the first insert, but in the second, it’s change the first added row’s Date value too.

Example:
2016-05-04
2016-05-05
Click Add button
2016-05-04
2016-05-05
2016-05-06
Click Add button again
2016-05-04
2016-05-05
2016-05-07
2016-05-07

[Franco01Participant]

I have manage to solved it.
This line cause the problem:
dat.setDate(dat.getDate() + 1);

[Author]

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