Vim - how do I capitalize the first letter of a word?

Question

For a long time, I know in vim we can use "~" to toggle the case of a character. Though, is there a way to map a key to capitalize a word and go back to the previous position?

For example:

I like to drink Coca co[l]

If my cursor is at "l" and I realize I need to make the "c" capitalize as well, currently, I need to do:

"<C-c> b ~ ll i"

Is there a way to map a single key to make the first letter of the word under cursor to be capitalized and keep the cursor at original position?

Answer 1

:nmap <whatever> m`b~``

Answer 2

Have a look here.

Answer 3

you can also use macro

q<register> <C-c> b ~ ll i q

and then do @<register> every time you need to use it.