How to create gitignore or where to find it?

Question

git

It is necessary to make sure that some folders are ignored when committing, I have been googling for about an hour, but I have not found an answer to my question. I looked around all the folders looking for .gitignore, but I didn’t find it. I already tried to create files with the .gitignore extension, wrote folders in it that needed to be ignored, but nothing came of it. Google doesn't give a definitive answer. Here is the project structure. Folders that should be ignored are crossed out.

Answer 1

I prefer to do it via TortoiseGit: There is a good resource in general: https://github.com/github/gitignore

Answer 2

Just create a file called ".gitignore." and the dot at the end itself will be removed after the file is created.

Answer 3

How to make git not see .idea?