Learn some Vim

vim.md

Learn some Vim

The goal - 20% of the features covers the 80% daily usage

Why you shoud learn Vim?

• Basically it's everywhere, only if you're using Unix/Linux/macOS.
  • Edit your confuguration on the servers.
  • Some magic, so many text editors were dead in the history, but it isn't.
• High efficiency
  • No mouse or trackpad needed.
  • Running fast, but less resource is required.
  • Coding faster, less unnecessary finger movement.

How to learn

• Why it's so hard to learn
  • Because of it isn't like the normal text editor, it has differnet mode.
  • Everyone has their own setup, but it makes it hard to know why they set it up like that.
• Focus on what you need only

Show my own setup

Basic

• Installation, macOS
• New file, edit, save
• Movement
• Copy & paste

Plugins

• vimrc
• vim-plug
• Key bindings
• Cases study
  • Open folder
  • Open file manager, adding files, deleting files, opening files
  • Switch, close tabs
  • Jump
  • Block selection
  • Unit test
  • Terminal
  • Git pull, git commit, git push

Next

• Use it, VSCode + Vim

• vimtutor

• Useful links

Basic

• different mode, normal mode, visual mode, insert mode, command mode, :h vim-modes for more detail
• :q, :q! :wq, :w <file path>

Without plugins

• movement

  • hjkl
  • gg, G
  • 0, ^, $
  • f, F
  • *
  • /<regex>
  • /\v<regex>
  • :<number>

• selection

  • v, <ctrl>v, V
  • w, W
  • %
  • vi(, viw, vi", vi'
  • v%

• selection + paste

  • yyp

• others

  • u, U
  • J

• set nu

• practice

  • search for a setting
  • copy & paste
  • comment out for a setting

With useful plugins

Understand the .vimrc

• basic setting
• builtin func all in lowercase, user-defined function must be capital letter
• :h is our friend

Plugins manager - https://github.com/junegunn/vim-plug

" lsp support
Plug 'prabirshrestha/async.vim'
Plug 'prabirshrestha/vim-lsp'
Plug 'mattn/vim-lsp-settings'
Plug 'prabirshrestha/asyncomplete.vim'
Plug 'prabirshrestha/asyncomplete-lsp.vim'
Plug 'ajh17/VimCompletesMe'

" language specific
Plug 'fatih/vim-go', { 'tag': '*' }
Plug 'rust-lang/rust.vim'
Plug 'leafgarland/typescript-vim'

" utils
Plug 'prabirshrestha/asyncomplete-file.vim'
Plug 'junegunn/fzf', { 'dir': '~/.fzf', 'do': './install --all' }
Plug 'junegunn/fzf.vim'
Plug 'preservim/nerdtree'
Plug 'itchyny/lightline.vim'
Plug 'mhinz/vim-startify'
Plug 'jiangmiao/auto-pairs'
Plug 'valloric/MatchTagAlways'
Plug 'tpope/vim-commentary'
Plug 'tpope/vim-fugitive'
Plug 'ap/vim-buftabline'
Plug 'qpkorr/vim-bufkill'
Plug 'easymotion/vim-easymotion'
Plug 'tpope/vim-surround'
Plug 'prettier/vim-prettier', { 'do': 'yarn install' }

" color theme
Plug 'romainl/flattened'

" unit test
Plug 'janko/vim-test' 
Plug 'tpope/vim-dispatch'

• practice

  • Open from a folder - vim . or mvim . or with alfred
  • <leader>wh
  • file creation, rename, update
  • search files by filename, FZF
  • search files' content by keywords, Find
  • show currentn active buffer's path in the menu, <leader>ff
  • easymotion, <leader><leader>s
  • switch window, <ctrl>n, <ctrl>p
  • jump between buffers <ctrl>w+hjkl
  • delete <leader>bw, <ctrl>wq
  • code folding, setting, zf, zo, zc
  • copy & paste
  • replace ' to "
    • with surround
    • for the whole file :%s
    • for the selection only
  • change letter's case, uppercase, lowercase (constant)
  • format with ==, <leader>fmt
  • comment, gc, gcc
  • run unit test

• set it up from very beginning

  • basic setting
  • https://github.com/macvim-dev/macvim
  • https://github.com/junegunn/vim-plug
  • plugins & their setting, key bindings

VSCode with Vim extension

• vim-easymotion
• vim-surround

What's the next

• try vimtutor first (no more than 30mins)
• read https://learnvimscriptthehardway.stevelosh.com (no more than two days)