The printStackTrace method of Java is useful for handling exceptions and errors during development. It tells you the exact line number in your source code and the file name where the problem occurred.
A better alternative is that you parse the stack property of the Error object. This contains the entire stack trace along with line numbers, column position and the function names.
Great debugging tip from Amit that you can use in Google Apps Script for parsing the entire stack trace along with line numbers, column position and the function names. Check the source link below for example code and usage.