vim in practice (1)

Vim have a extra key to activate mappings, and call this “prefix” key the “leader”.

*Mapping keys is one of the places where Vim comments does’t work.

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let mapleader=',' nnoremap <leader>ev :vsplit $MYVIMRC<cr> nnoremap <leader>sv :source $MYVIMRC<cr>

Vim has a feature called “abbreviations” that feel similar to mappings but are meant for use in insert, replace, and command modes.

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iabbrev what what when you type *<space>* were substituted with *what<space>*

This effectively disables the escape key in insert mode by telling Vim to perform (no operation) instead.

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inoremap <esc> <nop> 

Autocommands are the way to tell Vim to run commands whenever certain events happen.

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         ^          ^ ^
         |          | |
         |          | The command to run.
         |          |
         |          A "pattern" to filter the event.
         |
         The "event" to watch for.
:autocmd BufWritePre,BufRead *.html :normal gg=G
:help autocmd-events