How to fix inconsistent use of tabs and spaces in indentation error?

Question

JavaScript

I encountered an error while writing the parser

course = {'titel': titel, 'descript': descript, 'url': url}
                                                                              ^
TabError: inconsistent use of tabs and spaces in indentation

I don’t understand where the jamb with tabulation

Answer 1

let array = Object.values(obj).map(({ name, item, type, summ }) => ([ name, item, type, sum ]));

(I wrote from the phone, I could print it)

Answer 2

What is there not to understand - I copied a piece from somewhere, and there are tabs in it. The 3rd python considers it a mistake to use both tabs and spaces in one file at the same time.

Answer 3

Cant in the place where indicated^