Returns all sheets names of a google spreadsheet

[franck_PERRET]

I am loocking for the list of all sheets names of a google spreadsheet.

 var outString="";
 var ss = SpreadsheetApp.getActive();
 var namedRanges = ss.getNamedRanges();
 outString=namedRanges;
return ContentService.createTextOutput(outString);

[TIMAI2]

Not strictly an AI2 question!

function sheetnames() {
  var out = new Array()
  var sheets = SpreadsheetApp.getActiveSpreadsheet().getSheets();
  for (var i=0 ; i<sheets.length ; i++) out.push( [ sheets[i].getName() ] )
  return out 
}

[franck_PERRET]

Merci