excel check if cell not empty

'VBA to check if cell A1 has a value.

'Two different ways...

MsgBox Not IsEmpty([A1])

MsgBox Not Len([A1]) = 0

IF(A1<>"","Not empty","Empty")

var ss = SpreadsheetApp.getActiveSpreadsheet();
var sheet = ss.getSheets()[0];
var range = sheet.getRange("B2:D4");

Logger.log(range.isBlank());