Reload configurations without restarting Emacs

Question

How do I load the edited .emacs file without restarting Emacs?

Answer 1

In the *scratch* buffer, type:

(load-file user-init-file)

Then press C-x C-e to evaluate the expression.

Answer 2

M-x load-file ENTER
~/.emacs
ENTER

(source)

Answer 3

M-x load-file and then choose the .emacs file should also work