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% Document Info
\author{ChaosJD (ChaosJD)}
\pdfinfo{
  /Title (cleanmethods.pdf)
  /Creator (Cheatography)
  /Author (ChaosJD (ChaosJD))
  /Subject (CleanMethods Cheat Sheet)
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        \hspace*{-6pt}\includegraphics[width=5.8cm]{/web/www.cheatography.com/public/images/cheatography_logo.pdf}}
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\begin{tabulary}{11cm}{L}
    \vspace{-2pt}\large{\bf{\textcolor{DarkBackground}{\textrm{CleanMethods Cheat Sheet}}}} \\
    \normalsize{by \textcolor{DarkBackground}{ChaosJD (ChaosJD)} via \textcolor{DarkBackground}{\uline{cheatography.com/99440/cs/21022/}}}
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  \mymulticolumn{2}{p{5.377cm}}{\bf\textcolor{white}{Cheatographer}}  \\
  \vspace{-2pt}ChaosJD (ChaosJD) \\
  \uline{cheatography.com/chaosjd} \\
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  \mymulticolumn{1}{p{5.377cm}}{\bf\textcolor{white}{Cheat Sheet}}  \\
   \vspace{-2pt}Published 25th December, 2022.\\
   Updated 10th November, 2019.\\
   Page {\thepage} of \pageref{LastPage}.
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  \vspace{-5pt}
  %\includegraphics[width=48px,height=48px]{dave.jpeg}
  Measure your website readability!\\
  www.readability-score.com
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\mymulticolumn{2}{x{3.833cm}}{\bf\textcolor{white}{Meaningful Distinction}}  \tn
% Row 0
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{3.833cm}}{What's source?} \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
\mymulticolumn{2}{x{3.833cm}}{What is destination?} \tn 
% Row Count 2 (+ 1)
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\mymulticolumn{2}{x{3.833cm}}{public static void copyChars(char a1{[} {]}, char a2{[} {]}) \{ \newline   ... \}}  \tn 
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\par\addvspace{1.3em}

\begin{tabularx}{3.833cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{3.833cm}}{\bf\textcolor{white}{Use Pronouncable Names}}  \tn
% Row 0
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\mymulticolumn{1}{x{3.833cm}}{Write names {\bf{out!}}} \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
\mymulticolumn{1}{x{3.833cm}}{Longer names trumps short Names} \tn 
% Row Count 2 (+ 1)
% Row 2
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{3.833cm}}{Searchable names trumps a constant in Code} \tn 
% Row Count 3 (+ 1)
% Row 3
\SetRowColor{white}
\mymulticolumn{1}{x{3.833cm}}{{\bf{Avoid Encodings}}} \tn 
% Row Count 4 (+ 1)
% Row 4
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{3.833cm}}{Make names pronouncable} \tn 
% Row Count 5 (+ 1)
% Row 5
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\mymulticolumn{1}{x{3.833cm}}{Dirty:} \tn 
% Row Count 6 (+ 1)
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\mymulticolumn{1}{x{3.833cm}}{class DtaRcrd102 \{ \newline     private Date genymdhms; \newline     private Date modymdhms; \newline     private final String pszqint = "102";\}  \{\{fa-bolt\}\}}  \tn 
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\mymulticolumn{1}{x{3.833cm}}{\bf\textcolor{white}{Hungarian Notation}}  \tn
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\mymulticolumn{1}{x{3.833cm}}{// Name {\bf{not}} changed when type changed} \tn 
% Row Count 1 (+ 1)
% Row 1
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\mymulticolumn{1}{x{3.833cm}}{PhoneNumber {\bf{phone}}String;  \{\{bt\}\}} \tn 
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\mymulticolumn{2}{x{3.833cm}}{\bf\textcolor{white}{Method Names}}  \tn
% Row 0
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Use & verbs, phrases like PostPayment, deletePage or SavePage \tn 
% Row Count 3 (+ 3)
% Row 1
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Constructor Overload use \{\{bt\}\} & Static factory Methods, with names, that describe the arguments \{\{bt\}\} \tn 
% Row Count 7 (+ 4)
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% Row 1
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Dirty & Clean \tn 
% Row Count 1 (+ 1)
% Row 1
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\{\{noshy\}\}{\bf{interface}} IShapeFactory \{\{fa-bolt\}\} & {\bf{class}} ShapeFactoryImpl \{\{noshy\}\} \tn 
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% Row 2
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 & {\bf{interface}} Shapefactory \{\{noshy\}\} \tn 
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% Row 0
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% Row Count 1 (+ 1)
% Row 1
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% Row 2
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% Row 3
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\mymulticolumn{1}{x{3.833cm}}{\bf\textcolor{white}{Use Problem Domain Names}}  \tn
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\mymulticolumn{1}{x{3.833cm}}{If is there no Programming technique use the name from the Problem Domain \newline % Row Count 2 (+ 2)
{\bf{DomainDrivenDesign}} D3 {\bf{not}} D3.js% Row Count 3 (+ 1)
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% Row 0
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AccountVisitor & VisitorPattern \tn 
% Row Count 1 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
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{\bf{Dirty}} & {\bf{Clean}} \tn 
% Row Count 1 (+ 1)
% Row 1
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holyHandGrenade() \{\{fa-bolt\}\} & \seqsplit{deleteItems()} \tn 
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% Row 2
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eatMyShorts() \{\{fa-bolt\}\} & abort() \tn 
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% Row Count 2 (+ 2)
% Row 1
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low Level & .append("\textbackslash{}n"). \tn 
% Row Count 3 (+ 1)
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\mymulticolumn{1}{x{3.833cm}}{\bf\textcolor{white}{Add Meaningful Context}}  \tn
% Row 0
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% Row Count 1 (+ 1)
% Row 1
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% Row 2
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\mymulticolumn{1}{x{3.833cm}}{\bf\textcolor{white}{Sideeffects}}  \tn
% Row 0
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\mymulticolumn{1}{x{3.833cm}}{If you must have a temporal coupling, you should make it {\bf{clear in the name}} of the function} \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
\mymulticolumn{1}{x{3.833cm}}{\seqsplit{checkPasswordAndInitializeSession()} \{\{bt\}\}} \tn 
% Row Count 3 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}-}
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\mymulticolumn{2}{x{3.833cm}}{\bf\textcolor{white}{Avoid Mental Mapping}}  \tn
% Row 0
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Clean: & loop Counter {\bf{only:}} i, j, k \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
Dirty: \{\{bt\}\} & {\bf{k}} and {\bf{l}} because One (1) \{\{fa-bolt\}\}\{\{nl\}\} =\textgreater{} too much  \{\{bt\}\} \tn 
% Row Count 4 (+ 3)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
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% Row 0
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\hhline{>{\arrayrulecolor{DarkBackground}}--}
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% Row 0
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\mymulticolumn{1}{x{3.833cm}}{{\bf{Passing a boolean into a funciton is a truly terrible practise}}} \tn 
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% Row 1
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\mymulticolumn{1}{x{3.833cm}}{render(boolean isSuite)\{\{fa-bolt\}\}} \tn 
% Row Count 3 (+ 1)
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Use & * occasional multiple return, \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
 & * break and \tn 
% Row Count 3 (+ 1)
% Row 2
\SetRowColor{LightBackground}
 & * continue statement does no harm \tn 
% Row Count 5 (+ 2)
% Row 3
\SetRowColor{white}
{\bf{Don't USE}} \{\{bt\}\} & {\bf{never, ever, any goto statements}} \{\{fa-bolt\}\}\{\{bt\}\} \tn 
% Row Count 8 (+ 3)
% Row 4
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but\{\{bt\}\} & \{\{bt\}\}only in special languages. Be careful, you can destroy or control flow \tn 
% Row Count 11 (+ 3)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
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% Row 0
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\mymulticolumn{1}{x{3.833cm}}{{\bf{Useless:}}} \tn 
% Row Count 1 (+ 1)
% Row 1
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\mymulticolumn{1}{x{3.833cm}}{{\emph{Niladic(0)}} {\bf{best Solution:}}} \tn 
% Row Count 2 (+ 1)
% Row 2
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\mymulticolumn{1}{x{3.833cm}}{includeSetupPage()} \tn 
% Row Count 3 (+ 1)
% Row 3
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\mymulticolumn{1}{x{3.833cm}}{{\emph{Polyadic ( More then three Arguments):}}} \tn 
% Row Count 4 (+ 1)
% Row 4
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\mymulticolumn{1}{x{3.833cm}}{ResponseEntity\textless{}Map\textgreater{} responseEntity1 =  restTemplate.exchange      (REST\_SERVICE\_URI+\{\{noshy\}\}"/contract/"+ID,  HttpMethod.PUT,  entity,  Map.class)} \tn 
% Row Count 7 (+ 3)
% Row 5
\SetRowColor{white}
\mymulticolumn{1}{x{3.833cm}}{{\bf{Usable}}\{\{bt\}\}} \tn 
% Row Count 8 (+ 1)
% Row 6
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\mymulticolumn{1}{x{3.833cm}}{{\emph{Monadic:}}} \tn 
% Row Count 9 (+ 1)
% Row 7
\SetRowColor{white}
\mymulticolumn{1}{x{3.833cm}}{boolean fileExists("MyFile")} \tn 
% Row Count 10 (+ 1)
% Row 8
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{3.833cm}}{{\emph{Dyadic:}}} \tn 
% Row Count 11 (+ 1)
% Row 9
\SetRowColor{white}
\mymulticolumn{1}{x{3.833cm}}{\seqsplit{assertExpectedEqualsActual(expected}, actual);} \tn 
% Row Count 12 (+ 1)
% Row 10
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{3.833cm}}{{\emph{Triadic:}}} \tn 
% Row Count 13 (+ 1)
% Row 11
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\mymulticolumn{1}{x{3.833cm}}{assertEquals(1.0, amount, .001);} \tn 
% Row Count 14 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}-}
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\mymulticolumn{1}{x{3.833cm}}{\bf\textcolor{white}{Don't add Gratuitous Context}}  \tn
% Row 0
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\mymulticolumn{1}{x{3.833cm}}{You need:} \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
\mymulticolumn{1}{x{3.833cm}}{* descriptive Skills} \tn 
% Row Count 2 (+ 1)
% Row 2
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{3.833cm}}{* shared cultural backround} \tn 
% Row Count 3 (+ 1)
% Row 3
\SetRowColor{white}
\mymulticolumn{1}{x{3.833cm}}{* Don't be afraid of Renaming} \tn 
% Row Count 4 (+ 1)
% Row 4
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{3.833cm}}{* Use Refactoring Tools\{\{nl\}\}-\textgreater{} {\bf{IntelliJ}}} \tn 
% Row Count 5 (+ 1)
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\mymulticolumn{1}{x{3.833cm}}{\bf\textcolor{white}{Blocks And Indenting - Arrow Code}}  \tn
% Row 0
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\mymulticolumn{1}{x{3.833cm}}{The indent level of a function should not be greater then} \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
\mymulticolumn{1}{x{3.833cm}}{{\bf{one or two}}} \tn 
% Row Count 3 (+ 1)
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\begin{tabularx}{3.833cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{3.833cm}}{\bf\textcolor{white}{TO paragraph}}  \tn
% Row 0
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{3.833cm}}{We want every function to be followed by those at the next level of abstraction so that we can read the program, descending one level of abstraction at a time as we read down the list of functions.} \tn 
% Row Count 4 (+ 4)
% Row 1
\SetRowColor{white}
\mymulticolumn{1}{x{3.833cm}}{To say this differently, we want to be able to read the program as though it were a set of TO paragraphs, each of which is describing the current level of abstraction and referencing subsequent TO paragraphs at the next level down.\{\{bt\}\}} \tn 
% Row Count 9 (+ 5)
% Row 2
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{3.833cm}}{\{\{bt\}\}{\bf{MethodHeader:}}\{\{nl\}\}To include the setups,\{\{nl\}\}{\bf{Code:}}\{\{nl\}\}we include the suite setup if this is a suite, then we include the regular setup.} \tn 
% Row Count 13 (+ 4)
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{3.833cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{3.833cm}}{\bf\textcolor{white}{Don't Pun}}  \tn
% Row 0
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{3.833cm}}{Use:} \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
\mymulticolumn{1}{x{3.833cm}}{insert(), append()\{\{bb\}\}} \tn 
% Row Count 2 (+ 1)
% Row 2
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{3.833cm}}{Instead of} \tn 
% Row Count 3 (+ 1)
% Row 3
\SetRowColor{white}
\mymulticolumn{1}{x{3.833cm}}{add()} \tn 
% Row Count 4 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{3.833cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{3.833cm}}{\bf\textcolor{white}{Command Query Seperation}}  \tn
% Row 0
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{3.833cm}}{Either your function should change the state of an object, or it should return some information about that object:} \tn 
% Row Count 3 (+ 3)
% Row 1
\SetRowColor{white}
\mymulticolumn{1}{x{3.833cm}}{public boolean set(String attribute, String value);} \tn 
% Row Count 5 (+ 2)
% Row 2
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{3.833cm}}{Clean:\{\{bb\}\}} \tn 
% Row Count 6 (+ 1)
% Row 3
\SetRowColor{white}
\mymulticolumn{1}{x{3.833cm}}{if \seqsplit{(attributeExists("username"))} \{setAttribute("username", "unclebob");      …    \}} \tn 
% Row Count 8 (+ 2)
% Row 4
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{3.833cm}}{Dirty: \{\{bb\}\}} \tn 
% Row Count 9 (+ 1)
% Row 5
\SetRowColor{white}
\mymulticolumn{1}{x{3.833cm}}{if (set("username", "unclebob"))\{...\} \{\{fa-bolt\}\}} \tn 
% Row Count 11 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{3.833cm}{x{1.99114 cm} x{1.44186 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{3.833cm}}{\bf\textcolor{white}{Avoid Mental Mapping}}  \tn
% Row 0
\SetRowColor{LightBackground}
loop Counter {\bf{only:}} & i, j, k \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
{\bf{Never}} & l because One(1) \tn 
% Row Count 2 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{3.833cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{3.833cm}}{\bf\textcolor{white}{One Thing}}  \tn
% Row 0
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{3.833cm}}{Functions should do {\bf{one thing}}. They should do it well. They should do it only} \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
\mymulticolumn{1}{x{3.833cm}}{* Aids the Reader\{\{bt\}\}} \tn 
% Row Count 3 (+ 1)
% Row 2
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{3.833cm}}{* Promote Reuse} \tn 
% Row Count 4 (+ 1)
% Row 3
\SetRowColor{white}
\mymulticolumn{1}{x{3.833cm}}{*Eases Naming \& Testing} \tn 
% Row Count 5 (+ 1)
% Row 4
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{3.833cm}}{*Avoid Sideeffects} \tn 
% Row Count 6 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}


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

\end{document}