reloading elisp code when debugging

Question

I have some elisp code in smcho.el.

• The problem is whenver I change the functions in this file, I have to reload emacs. Is there any way to reload this elisp file only?
• (Added based on the answer) Is there any way to redo the previous loading easily? I guess M-x load-file and give the file name again over and over again can be improved.

Answer 1

M-x load-file will load an elisp file.

Answer 2

In answer to the second question, the minibuffer stores history, so you don't need to type the command (or argument) in full each time. Repeatedly pressing C-p (or the up arrow) will cycle backwards through the relevant history. So you might type M-x then C-p to get load-file and then C-p again at the prompt to get the last filename you loaded.

If you are currently viewing the file you want to evaluate, then you can simply use M-x eval-buffer, or M-x eval-region to evaluate a sub-set of it.

You can also search the minibuffer history at the prompt with C-r and C-s