How to use regular expressions on variables with text in vimscript?

Question

I have text saved in a variable, for example, like this:

let text = getline(line(".")-1)

How do I check if the text matches a regular expression? I'm expecting something like this:

let text = getline(line(".")-1)
if regexp_match(text, "^[Ss]tuff$")
    dostuff
endif

Answer 1

Made some more research and found out that what I needed is =~# operator which is used to check if some text matches a regexp:

if "text"=~#"^te.."
    echo "Matches!"