How can I execute the current line as Vim EX commands?

Question

Say I\'m editing my _vimrc file and I\'ve just added a couple of lines, for instance a new key mapping. I don\'t want to reload the whole file (:so %

Answer 1

Executing the line under cursor as an Ex command:

:execute getline(".")

Convenient enough for 2 lines. (I'd figure out something for doing it with regions, but I'm not a vim user). And for currently selected region, the following seems to do the job:

:execute getreg("*")

---

As commented by Peter Rincker, this mapping can be used for executing the currently selected lines:

:vnoremap  :exe join(getline("'<","'>"),'')