Elisp: function to paste heading lines in an Org-mode buffer

Question

I would like to have a function that pastes a certain heading:

"#+TITLE:\n#+STARTUP: overview"

I tried using insert-buffer-substring:

(insert-buffer-substring "#+TITLE:\n#+STARTUP: overview")

but it's not working.

Answer 1

As @NickD suggested in a comment, you can use function insert.

(insert "#+TITLE:\n#+STARTUP: overview")

C-h f insert-buffer-substring tells you that you need to pass it a buffer as argument. And the rest of what it tells you makes clear that it doesn't at all do what you're looking for.

C-h f insert tells you:

insert is a built-in function in C source code.

(insert &rest ARGS)

Insert the arguments, either strings or characters, at point. ...