What is syntax for ignoring a directory in Git?

Question

When I want to add an entire directory to my .gitignore, what is the syntax? The directory-to-ignore is in my root directory.

Should it be:

1) directory-to-ignore

2) directory-to-ignore/

3) directory-to-ignore/*

Answer 1

just add the directory to the .gitigore like:

.gitignore file:

directory-to-ignore/

so, option 2 is correct