Date compare If statement not working, see what is wrong - google-apps-script

Question

I want to compare two dates and see what is similar but the if doesn't
work. I want to create a comparison with a cell value and a column of values.
function jobLogSchedule () {
var ss = SpreadsheetApp.getActiveSpreadsheet();/// Activate Sheet Application
var formSS = ss.getSheetByName("Form"); //Form Sheet
var dataBase = ss.getSheetByName("Data"); //Data Sheet
var viewSchedule = formSS.getRange("H2").getValue();
var firstDate = new Date(viewSchedule);
formSS.getRange("H2").setValue(firstDate);
formSS.getRange("H4").setValue(firstDate);
var lastRow = dataBase.getLastRow();
for(i=1; i<lastRow; i++){
var workingCell = dataBase.getRange(i,6,lastRow);
var dateDataBase = workingCell.getValue();
if (dateDataBase == viewSchedule) {
}
else {
}
}
}

Answer 1

try this:
function jobLogSchedule () {
var ss=SpreadsheetApp.getActive();
var fsh=ss.getSheetByName("Form");
var dsh=ss.getSheetByName("Data");
var lastRow=dsh.getLastRow();
var drg=dsh.getRange(1,6,lastRow,1);
var vA=drg.getValues();
var firstDate = new Date(fsh.getRange("H2").getValue());
fsh.getRange("H2").setValue(firstDate);
fsh.getRange("H4").setValue(firstDate);
for(i=0;i<vA.length;i++){
if (new Date(vA[i][0]).valueOf()==firstDate.valueOf()) {
//true
}
else {
//false
}
}
}