VIM - tricks and tips

    , - Map leader, nearly all my custom mappings starts with pressing the comma key
    ,q - Sidebar filetree viewer (NERDTree)
    ,w - Sidebar classes, functions, variables list (TagBar)
    \ - Toggle both NERDTree and TagBar
    ,ee - Change colorscheme (with fzf fuzzy finder)
    ,ea - Change Airline theme
    ,e1 - Color mode: Dracula (Dark)
    ,e2 - Color mode: Seoul256 (Between Dark & Light)
    ,e3 - Color mode: Forgotten (Light)
    ,e4 - Color mode: Zazen (Black & White)
    ,r - Refresh/source ~/.config/nvim/init.vim
    ,t - Trim all trailing whitespaces
    ,a - Auto align variables (vim-easy-align), eg. do ,a= while your cursor is on a bunch of variables to align their equal signs
    ,s - New terminal in horizontal split
    ,vs - New terminal in vertical split
    ,d - Automatically generate Python docstrings while cursor is hovering above a function or class
    ,f - Fuzzy find a file (fzf)
    ,g - Toggle Goyo mode (Goyo), super clean and minimalistic viewing mode
    ,h - Toggle rainbow parentheses highlighting
    ,j - Set filetype to "journal" which makes the syntax highlighting beautiful when working on regular text files and markdown
    ,k - Toggle coloring of hex colors
    ,l - Toggle Limelight mode (Limelight), highlight the lines near cursor only
    ,c<Space> - Toggle comment for current line (Nerd Commenter)
    <Alt-r> - Toggle RGB color picker
    <Tab> - Next buffer
    <Shift-Tab> - Previous buffer

i                                       -       Insert Mode
Shift + a                               -       Insert Mode - Append
o                                       -       Insert Mode - New Line After
Shift + Up/Down                         -       Scrolling
:wq                                     -       Write and Quit
:e [file]                               -       Edit Another File
gg                                      -       Goto First Line
G                                       -       Goto Last Line

u                                       -       Undo
Ctrl + r                                -       Redo
.                                       -       Repeat Previous Command

/[word]                                 -       Search
n                                       -       Search - Next
Shift + n                               -       Search - Previous
/[word], [edit], n, .                   -       Search, modify, next search, repeat for next
:%s/old/new/g                           -       Replace All
:[startline],[endline]s/old/new/g       -       Replace Between Lines
:%s/^/[word]/g                          -       Append Word to Start of Every Line
:%s/$/[word]/g                          -       Append Word to End of Every Line

Ctrl + w and v                          -       Splitting Window Vertically
Ctrl + w and Shift + s                  -       Splitting Window Horizontally

v                                       -       Visual Select
Shift + v                               -       Visual Select - Line
Ctrl + v                                -       Visual Select - Block
Shift + v and [number]>                 -       Tab a Line Multiple Times

d                                       -       Delete/Cut
dd                                      -       Delete Current Line
d[number]d                              -       Delete Multiple Lines
y                                       -       Yank/Copy
p                                       -       Paste

gg=G                                    -       Fix All Indentations

vi"                                     -       Select everything within double quotes
va"                                     -       Select everything within and including double quotes
vi"d                                    -       Delete everything within double quotes
vi"s                                    -       Delete everything within double quotes then go into insert mode

:sp filename 	Open filename in horizontal split
:vsp filename 	Open filename in vertical split
Ctrl-w h Ctrl-w ← 	Shift focus to split on left of current
Ctrl-w l Ctrl-w → 	Shift focus to split on right of current
Ctrl-w j Ctrl-w ↓ 	Shift focus to split below the current
Ctrl-w k Ctrl-w ↑ 	Shift focus to split above the current
Ctrl-w n+ 	Increase size of current split by n lines
Ctrl-w n- 	Decrease size of current split by n lines