How to make "quick access" to a function in Vim?

Question

vim

Let's say every time I want to save a session I write:
:!rm .session.vim
:mksession .session.vim
But I'm sure that you can write a simple function that you put in .vimrc and when I enter for example :savesession then these two commands will be executed at once. How to do it?

Answer 1

An example of setting up hotkeys, put in .vimrc:

" F2 - сохранить файл
nmap <F2> :w<cr>
vmap <F2> <esc>:w<cr>i
imap <F2> <esc>:w<cr>i

Answer 2

Somehow so .

Answer 3

https://github.com/xolox/vim-session
Able to save the session on exit, there is also an autosave with a given frequency.