How to open a sheet by script from a spreadsheet? - google-apps-script

Question

I have a sheet on my Google Drive called "Titito." I use SpreadsheetApp.open(Titito) to open it but it returns:
ReferenceError: "Titito" is not defined. (ligne 5, fichier "macros"
When I try to open it by its URL:
SpreadsheetApp.openByUrl('https://docs.google.com/spreadsheets/d/1NTql7GMdPg8at0VEaz2jFmzOd4zBVjwArqDqWBww_Ww/edit#gid=0');
it returns:
You do not have permission to call SpreadsheetApp.openByUrl. Required permissions:
While it's my file, created by me.
How can I open a sheet in my drive by a script in an other sheet?
I just would like to know how to do as I did it on Visual Excel (Workbooks.Open Filename:="c:\TermFB\Charges\chargecpt.xls") but on google script
Thanks.

Answer 1

If "Titito" is the name of the actual file, then SpreadsheetApp.open(Titito) is not the way; sa you can see in the documentation, that uses file objects. In order to get it through the name, you will need to instead use DriveApp (Documentation here). With it you can get the files in your Drive and get the one you're looking for, the code for that looks like this:
function fn(){
var files = DriveApp.getFiles();
var file;
while (files.hasNext()){
file = files.next();
if (file.getName() == "Titito")
break;
}
var ss = SpreadsheetApp.open(file).getUrl();
// rest of your code...
}
UPDATE
OP needed a way to open the actual Spreadsheet through the script, after following the instructions in this video, they were able to achieve what they wanted.

Answer 2

function myFunction() {
// CREATE AND OPEN A FILE CALLED Toto
var ssNew = SpreadsheetApp.create('Toto');
var tyty = ssNew.getUrl();
// var selection=SpreadsheetApp.getActiveSheet().getActiveCell().getValue();
var html = "window.open('" + tyty + "');google.script.host.close();";
var userInterface = HtmlService.createHtmlOutput(html)
SpreadsheetApp.getUi().showModalDialog(userInterface, 'Open Tab');
}
Thanks to AMolina very helpful for my first step on google script !