I'm trying to automatically hide sheets in google sheets - google-apps-script

Question

I've set up timesheets in google sheets for my employees. Each employee has their own document, and each week at the start of the pay period, I'll make a new sheet in each document and hide the sheet from the previous week. The new sheet is named by the dates of that pay period (i.e. Feb 12 - Feb 18) I'm trying to write a script that can do this automatically for me. The script involves two functions that run on a time-based trigger. The first function is working perfectly and creates a new sheet each week at the start of the pay period with the correct dates as the name of the sheet. The second function to hide the old sheet is not working. I have the triggers staggered, so that the new sheet is created several hours before the old one should be hidden. Here is what I've tried for hiding the old sheet (the Template sheet is what is getting copied to each of the employee's documents, where B2 is the start date of the pay period and H2 is the end of the pay period).
var ss = SpreadsheetApp.openById('TEMPLATE SHEET ID').getActiveSheet()
var newName1 = Utilities.formatDate(ss.getRange("B2").getValue(),"CST","MMM dd");
var newName2 = Utilities.formatDate(ss.getRange("H2").getValue(),"CST","MMM dd");
var EMPLOYEE = SpreadsheetApp.openById('EMPLOYEE SHEET ID');
var hideEMPLOYEE = EMPLOYEE.getSheets();
for(var i =0;i<hideEMPLOYEE.length;i++){
Logger.log(i);
if(hideEMPLOYEE[i].getName()!== newName1 + "-" + newName2){
hideEMPLOYEE[i].hideSheet();
}
}

Answer 1

Try this:
If B2 or H2 are already dates that's okay this will just create another date from them but if they are strings that the constructor is familiar with then this will create a new date for them as well.
var ss = SpreadsheetApp.openById('TEMPLATE SHEET ID').getActiveSheet()
var newName1 = Utilities.formatDate(new Date(ss.getRange("B2").getValue()),"CST","MMM dd");
var newName2 = Utilities.formatDate(new Date(ss.getRange("H2").getValue()),"CST","MMM dd");
var EMPLOYEE = SpreadsheetApp.openById('EMPLOYEE SHEET ID');
var hideEMPLOYEE = EMPLOYEE.getSheets();
for(var i=0;i<hideEMPLOYEE.length;i++){
Logger.log(i);
if(hideEMPLOYEE[i].getName()!= newName1 + "-" + newName2){
hideEMPLOYEE[i].hideSheet();
}
}