\documentclass[10pt,a4paper]{article}

% Packages
\usepackage{fancyhdr}           % For header and footer
\usepackage{multicol}           % Allows multicols in tables
\usepackage{tabularx}           % Intelligent column widths
\usepackage{tabulary}           % Used in header and footer
\usepackage{hhline}             % Border under tables
\usepackage{graphicx}           % For images
\usepackage{xcolor}             % For hex colours
%\usepackage[utf8x]{inputenc}    % For unicode character support
\usepackage[T1]{fontenc}        % Without this we get weird character replacements
\usepackage{colortbl}           % For coloured tables
\usepackage{setspace}           % For line height
\usepackage{lastpage}           % Needed for total page number
\usepackage{seqsplit}           % Splits long words.
%\usepackage{opensans}          % Can't make this work so far. Shame. Would be lovely.
\usepackage[normalem]{ulem}     % For underlining links
% Most of the following are not required for the majority
% of cheat sheets but are needed for some symbol support.
\usepackage{amsmath}            % Symbols
\usepackage{MnSymbol}           % Symbols
\usepackage{wasysym}            % Symbols
%\usepackage[english,german,french,spanish,italian]{babel}              % Languages

% Document Info
\author{Navron}
\pdfinfo{
  /Title (go-lang.pdf)
  /Creator (Cheatography)
  /Author (Navron)
  /Subject (Go Lang Cheat Sheet)
}

% Lengths and widths
\addtolength{\textwidth}{6cm}
\addtolength{\textheight}{-1cm}
\addtolength{\hoffset}{-3cm}
\addtolength{\voffset}{-2cm}
\setlength{\tabcolsep}{0.2cm} % Space between columns
\setlength{\headsep}{-12pt} % Reduce space between header and content
\setlength{\headheight}{85pt} % If less, LaTeX automatically increases it
\renewcommand{\footrulewidth}{0pt} % Remove footer line
\renewcommand{\headrulewidth}{0pt} % Remove header line
\renewcommand{\seqinsert}{\ifmmode\allowbreak\else\-\fi} % Hyphens in seqsplit
% This two commands together give roughly
% the right line height in the tables
\renewcommand{\arraystretch}{1.3}
\onehalfspacing

% Commands
\newcommand{\SetRowColor}[1]{\noalign{\gdef\RowColorName{#1}}\rowcolor{\RowColorName}} % Shortcut for row colour
\newcommand{\mymulticolumn}[3]{\multicolumn{#1}{>{\columncolor{\RowColorName}}#2}{#3}} % For coloured multi-cols
\newcolumntype{x}[1]{>{\raggedright}p{#1}} % New column types for ragged-right paragraph columns
\newcommand{\tn}{\tabularnewline} % Required as custom column type in use

% Font and Colours
\definecolor{HeadBackground}{HTML}{333333}
\definecolor{FootBackground}{HTML}{666666}
\definecolor{TextColor}{HTML}{333333}
\definecolor{DarkBackground}{HTML}{A850EB}
\definecolor{LightBackground}{HTML}{F4E9FC}
\renewcommand{\familydefault}{\sfdefault}
\color{TextColor}

% Header and Footer
\pagestyle{fancy}
\fancyhead{} % Set header to blank
\fancyfoot{} % Set footer to blank
\fancyhead[L]{
\noindent
\begin{multicols}{3}
\begin{tabulary}{5.8cm}{C}
    \SetRowColor{DarkBackground}
    \vspace{-7pt}
    {\parbox{\dimexpr\textwidth-2\fboxsep\relax}{\noindent
        \hspace*{-6pt}\includegraphics[width=5.8cm]{/web/www.cheatography.com/public/images/cheatography_logo.pdf}}
    }
\end{tabulary}
\columnbreak
\begin{tabulary}{11cm}{L}
    \vspace{-2pt}\large{\bf{\textcolor{DarkBackground}{\textrm{Go Lang Cheat Sheet}}}} \\
    \normalsize{by \textcolor{DarkBackground}{Navron} via \textcolor{DarkBackground}{\uline{cheatography.com/185051/cs/38662/}}}
\end{tabulary}
\end{multicols}}

\fancyfoot[L]{ \footnotesize
\noindent
\begin{multicols}{3}
\begin{tabulary}{5.8cm}{LL}
  \SetRowColor{FootBackground}
  \mymulticolumn{2}{p{5.377cm}}{\bf\textcolor{white}{Cheatographer}}  \\
  \vspace{-2pt}Navron \\
  \uline{cheatography.com/navron} \\
  \end{tabulary}
\vfill
\columnbreak
\begin{tabulary}{5.8cm}{L}
  \SetRowColor{FootBackground}
  \mymulticolumn{1}{p{5.377cm}}{\bf\textcolor{white}{Cheat Sheet}}  \\
   \vspace{-2pt}Not Yet Published.\\
   Updated 12th May, 2023.\\
   Page {\thepage} of \pageref{LastPage}.
\end{tabulary}
\vfill
\columnbreak
\begin{tabulary}{5.8cm}{L}
  \SetRowColor{FootBackground}
  \mymulticolumn{1}{p{5.377cm}}{\bf\textcolor{white}{Sponsor}}  \\
  \SetRowColor{white}
  \vspace{-5pt}
  %\includegraphics[width=48px,height=48px]{dave.jpeg}
  Measure your website readability!\\
  www.readability-score.com
\end{tabulary}
\end{multicols}}




\begin{document}
\raggedright
\raggedcolumns

% Set font size to small. Switch to any value
% from this page to resize cheat sheet text:
% www.emerson.emory.edu/services/latex/latex_169.html
\footnotesize % Small font.

\begin{multicols*}{3}

\begin{tabularx}{5.377cm}{p{0.4977 cm} p{0.4977 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{packages}}  \tn
% Row 0
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{5.377cm}}{package main} \tn 
% Row Count 1 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{5.377cm}}{{\emph{-Every package file has to start with package.}}}  \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{2.78712 cm} x{2.18988 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Importing}}  \tn
% Row 0
\SetRowColor{LightBackground}
import "fmt" & import ( \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
import "math/rand" & "fmt" \tn 
% Row Count 2 (+ 1)
% Row 2
\SetRowColor{LightBackground}
 & "math/rand"  ) \tn 
% Row Count 3 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{5.377cm}}{{\emph{-Both are the same}}}  \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{Control Loops}}  \tn
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{{\bf{// Normal For}} \newline for i := 0; i \textless{} 10; i++ \{ \newline 	sum += i \newline \} \newline  \newline {\bf{// For loop is Also While Loop in Go}} \newline i := 0 \newline for i \textless{} 5 \{ \newline     fmt.Println(i) \newline \} \newline  \newline {\bf{// For with Range}} \newline nums := {[}{]}int\{2,4,6,8\} \newline for index,val := range nums \{ \newline     fmt.Println(index, val) \newline \} \newline  \newline {\emph{//Here range will give the index of nums to var index}}} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{- No paranthesis required around conditionals and increments \newline - Variable Initialization and Increment is optional here}  \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{2.43873 cm} x{2.53827 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Maps}}  \tn
% Row 0
\SetRowColor{LightBackground}
{\bf{// Creating Map with Make}} & {\bf{// creating Map}} \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
var name = make({[}type{]}type) & var name = map{[}type{]}type\{val:val, val:val\} \tn 
% Row Count 5 (+ 3)
% Row 2
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{5.377cm}}{var m = make({[}string{]}, string)} \tn 
% Row Count 6 (+ 1)
% Row 3
\SetRowColor{white}
\mymulticolumn{2}{x{5.377cm}}{} \tn 
% Row Count 6 (+ 0)
% Row 4
\SetRowColor{LightBackground}
{\bf{Insert or update an element in map }} & {\bf{Retrieve an element:}} \tn 
% Row Count 9 (+ 3)
% Row 5
\SetRowColor{white}
m{[}key{]} = elem & elem = m{[}key{]} \tn 
% Row Count 10 (+ 1)
% Row 6
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{5.377cm}}{} \tn 
% Row Count 10 (+ 0)
% Row 7
\SetRowColor{white}
\mymulticolumn{2}{x{5.377cm}}{{\bf{Delete an element:}}} \tn 
% Row Count 11 (+ 1)
% Row 8
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{5.377cm}}{delete(m, key)} \tn 
% Row Count 12 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{2.14011 cm} x{2.83689 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Variable Types}}  \tn
% Row 0
\SetRowColor{LightBackground}
bool & string \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
int  int8  int16  int32  int64 & uint uint8 uint16 uint32 uint64 uintptr \tn 
% Row Count 3 (+ 2)
% Row 2
\SetRowColor{LightBackground}
byte // alias for uint8 & rune // alias for int32 \tn 
% Row Count 5 (+ 2)
% Row 3
\SetRowColor{white}
float32 float64 & complex64 complex128 \tn 
% Row Count 6 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{Variable Conversion}}  \tn
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{x := 8 \newline y := float32(x)} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{you can replace float32 with different types}  \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{2.09034 cm} x{2.88666 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Array}}  \tn
% Row 0
\SetRowColor{LightBackground}
{\bf{// Array Declaration Only}} & {\bf{// Array Declaration without var}} \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
var name {[}size{]}type & name := {[}size{]}type\{val,val,val\} //size is optional \tn 
% Row Count 5 (+ 3)
% Row 2
\SetRowColor{LightBackground}
var a {[}10{]}string & primes := {[}6{]}int\{2, 3, 5, 7, 11, 13\} \tn 
% Row Count 7 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{1.44333 cm} x{3.53367 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Pointers}}  \tn
% Row 0
\SetRowColor{LightBackground}
{\bf{ Initailize }} & {\bf{The \& operator generates a pointer to its operand}} \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
var p *int & p = \&i \tn 
% Row Count 3 (+ 1)
% Row 2
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{5.377cm}}{} \tn 
% Row Count 3 (+ 0)
% Row 3
\SetRowColor{white}
\mymulticolumn{2}{x{5.377cm}}{{\bf{The * operator denotes the pointer's underlying value.}}} \tn 
% Row Count 5 (+ 2)
% Row 4
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{5.377cm}}{*p = 21} \tn 
% Row Count 6 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{1.89126 cm} x{3.08574 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{If-else \& Switch Case}}  \tn
% Row 0
\SetRowColor{LightBackground}
{\bf{ If-Else}} & {\bf{ if-else with Short Statement}} \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
if conditional \{ code \} & if short statement; conditional \{code\} \tn 
% Row Count 4 (+ 2)
% Row 2
\SetRowColor{LightBackground}
else \{ code \} & if v := math.Pow(x, n); v \textless{} lim \{ \tn 
% Row Count 6 (+ 2)
% Row 3
\SetRowColor{white}
 & return v \tn 
% Row Count 7 (+ 1)
% Row 4
\SetRowColor{LightBackground}
 & \} else \{ \tn 
% Row Count 8 (+ 1)
% Row 5
\SetRowColor{white}
 & fmt.Printf("\%g \textgreater{}= \%g\textbackslash{}n", v, lim) \} \tn 
% Row Count 10 (+ 2)
% Row 6
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{5.377cm}}{} \tn 
% Row Count 10 (+ 0)
% Row 7
\SetRowColor{white}
\mymulticolumn{2}{x{5.377cm}}{{\bf{ Switch Case}}} \tn 
% Row Count 11 (+ 1)
% Row 8
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{5.377cm}}{switch conditional} \tn 
% Row Count 12 (+ 1)
% Row 9
\SetRowColor{white}
\mymulticolumn{2}{x{5.377cm}}{case 0:} \tn 
% Row Count 13 (+ 1)
% Row 10
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{5.377cm}}{code} \tn 
% Row Count 14 (+ 1)
% Row 11
\SetRowColor{white}
\mymulticolumn{2}{x{5.377cm}}{case 1:} \tn 
% Row Count 15 (+ 1)
% Row 12
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{5.377cm}}{code} \tn 
% Row Count 16 (+ 1)
% Row 13
\SetRowColor{white}
\mymulticolumn{2}{x{5.377cm}}{default:} \tn 
% Row Count 17 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{5.377cm}}{{\emph{-Variables declared inside an if short statement are only in scope until the end of if-else block}} \newline {\emph{-Go's switch cases need not be constants, and the values involved need not be integers}}}  \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{2.33919 cm} x{2.63781 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Variables basic}}  \tn
% Row 0
\SetRowColor{LightBackground}
{\bf{// var name type = value}} & {\bf{// Declaration without type}} \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
var x int = 5 & x := 5 \tn 
% Row Count 3 (+ 1)
% Row 2
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{5.377cm}}{} \tn 
% Row Count 3 (+ 0)
% Row 3
\SetRowColor{white}
\mymulticolumn{2}{x{5.377cm}}{{\bf{// Constant Declaration with const keyword}}} \tn 
% Row Count 4 (+ 1)
% Row 4
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{5.377cm}}{const Phi = 1.618} \tn 
% Row Count 5 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{5.377cm}}{":=" is called Short Assignment statement \newline Outside of function ":=" is not allowed \newline  \newline Exported names :- To use any variable outside of package it must start with Capital Letter or else it will not run}  \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{2.09034 cm} x{2.88666 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Slices}}  \tn
% Row 0
\SetRowColor{LightBackground}
{\bf{// Slice Declaration}} & {\bf{// Creating Slice with Make}} \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
a{[}low : high{]} & var := make({[} {]}type, size) \tn 
% Row Count 4 (+ 2)
% Row 2
\SetRowColor{LightBackground}
a{[}1:4{]} & a := make({[} {]}int, 5)  // len(a)=5 \tn 
% Row Count 6 (+ 2)
% Row 3
\SetRowColor{white}
\mymulticolumn{2}{x{5.377cm}}{} \tn 
% Row Count 6 (+ 0)
% Row 4
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{5.377cm}}{{\bf{// Appending Item}}} \tn 
% Row Count 7 (+ 1)
% Row 5
\SetRowColor{white}
\mymulticolumn{2}{x{5.377cm}}{name = append(name, val)} \tn 
% Row Count 8 (+ 1)
% Row 6
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{5.377cm}}{a = append(a, "Something")} \tn 
% Row Count 9 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{5.377cm}}{- An array has a fixed size. A slice, on the other hand, is a dynamically-sized, flexible view into the elements of an array \newline - A slice does not store any data, it just describes a section of an underlying array}  \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{Functions}}  \tn
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{' func function\_name(args type) (output types) \{ \newline CODE \newline \}' \newline  \newline func swap(x, y string) (string, string) \{ \newline 	return y, x \newline \}} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{- func is used to declaration function \newline - in case of different input type we have to specify each one differently \newline - Output type is must if there is single return then no need to add paranthesis}  \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{1.84149 cm} x{3.13551 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Structs}}  \tn
% Row 0
\SetRowColor{LightBackground}
{\bf{initailize}} & {\bf{ Struct fields are accessed using a dot}} \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
type Name struct \{ & v := Vertex\{1, 2\} \tn 
% Row Count 4 (+ 2)
% Row 2
\SetRowColor{LightBackground}
var type \} & v.X = 4 \tn 
% Row Count 5 (+ 1)
% Row 3
\SetRowColor{white}
\mymulticolumn{2}{x{5.377cm}}{type Vertex struct \{ X int \}} \tn 
% Row Count 6 (+ 1)
% Row 4
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{5.377cm}}{v := Vertex\{1, 2\}} \tn 
% Row Count 7 (+ 1)
% Row 5
\SetRowColor{white}
\mymulticolumn{2}{x{5.377cm}}{} \tn 
% Row Count 7 (+ 0)
% Row 6
\SetRowColor{LightBackground}
{\bf{Pointers to structs}} & {\bf{Struct Literals}} \tn 
% Row Count 9 (+ 2)
% Row 7
\SetRowColor{white}
v := Vertex\{1, 2\} & var ( \tn 
% Row Count 11 (+ 2)
% Row 8
\SetRowColor{LightBackground}
p := \&v & v1 = Vertex\{1, 2\}  // has type Vertex \tn 
% Row Count 13 (+ 2)
% Row 9
\SetRowColor{white}
\seqsplit{fmt.Println(p.X)} & v2 = Vertex\{X: 1\}  // Y:0 is implicit \tn 
% Row Count 15 (+ 2)
% Row 10
\SetRowColor{LightBackground}
 & v3 = Vertex\{\}      // X:0 and Y:0 \tn 
% Row Count 17 (+ 2)
% Row 11
\SetRowColor{white}
 & p  = \&Vertex\{1, 2\} // has type *Vertex ) \tn 
% Row Count 19 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{5.377cm}}{{\emph{-A struct is a collection of fields}} \newline {\emph{-A struct literal denotes a newly allocated struct value by listing the values of its fields}}}  \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}


% That's all folks
\end{multicols*}

\end{document}