How to map a keyboard shortcut to resize a window?

Question

vim

I want to map keys on window resize

nnoremap <silent> <Leader>[ :exe "resize " . (winheight(0) * 3/2)<CR>
nnoremap <silent> <Leader>] :exe "resize " . (winheight(0) * 2/3)<CR>

I enter: ctrl ]
and error
E433: No tags file
E426: tag not found: name
at the beginning of the file, I
set nocompatible
tried to do this, but it does not help.
set tags=./tags,tags
or writes:
No identifier under cursor
Thank you all

Answer 1

Enter: ctrl ]

Many types of files use this combination <C-]>to navigate through "tags".
You can find out the existence and source of such a map using the verbose command :

:verbose map  <C-]>
:verbose nmap <buffer>

There are several ways to get around this; prevent default settings from being set or override them after.

Answer 2

Try using the sequence \ and [ or ] . The ctrl
key (like shift, alt) cannot be Leader. By default, Leader character is \ .