\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{Bibin Gokuldas (bibingokuldas)}
\pdfinfo{
  /Title (service-now-client-side-cheats.pdf)
  /Creator (Cheatography)
  /Author (Bibin Gokuldas (bibingokuldas))
  /Subject (Service-Now Client Side Cheats Cheat Sheet)
}

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% This two commands together give roughly
% the right line height in the tables
\renewcommand{\arraystretch}{1.3}
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% 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
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\newcommand{\tn}{\tabularnewline} % Required as custom column type in use

% Font and Colours
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\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{Service-Now Client Side Cheats Cheat Sheet}}}} \\
    \normalsize{by \textcolor{DarkBackground}{Bibin Gokuldas (bibingokuldas)} via \textcolor{DarkBackground}{\uline{cheatography.com/69673/cs/17641/}}}
\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}Bibin Gokuldas (bibingokuldas) \\
  \uline{cheatography.com/bibingokuldas} \\
        \uline{\seqsplit{bibingokuldas}.com/}
  \end{tabulary}
\vfill
\columnbreak
\begin{tabulary}{5.8cm}{L}
  \SetRowColor{FootBackground}
  \mymulticolumn{1}{p{5.377cm}}{\bf\textcolor{white}{Cheat Sheet}}  \\
   \vspace{-2pt}Published 25th October, 2018.\\
   Updated 11th August, 2020.\\
   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}{x{2.4885 cm} x{2.4885 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Field Based APIs}}  \tn
% Row 0
\SetRowColor{LightBackground}
Hide/Display variable & \textasciicircum{}g\_form.setDisplay(\textless{}fld\textgreater{},true/false);\textasciicircum{} \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
Disable a field & \textasciicircum{}g\_form.setDisable(\textless{}fld\textgreater{},true/false);\textasciicircum{} \tn 
% Row Count 4 (+ 2)
% Row 2
\SetRowColor{LightBackground}
Field ReadOnly & \textasciicircum{}g\_form.setReadOnly(\textless{}fld\textgreater{},true/false);\textasciicircum{} \tn 
% Row Count 6 (+ 2)
% Row 3
\SetRowColor{white}
Clear Value from Field & \textasciicircum{}g\_form.clearValue(\textless{}fld\textgreater{});\textasciicircum{} \tn 
% Row Count 8 (+ 2)
% Row 4
\SetRowColor{LightBackground}
Change Label of Field & \textasciicircum{}g\_form.setLabelOf(\textless{}fld\textgreater{},newlabel);\textasciicircum{} \tn 
% Row Count 10 (+ 2)
% Row 5
\SetRowColor{white}
Make field mandatory & \textasciicircum{}g\_form.setMandatory(\textless{}fld\textgreater{},true/false);\textasciicircum{} \tn 
% Row Count 12 (+ 2)
% Row 6
\SetRowColor{LightBackground}
Set Value of Field & \textasciicircum{}g\_form.setValue(\textless{}fld\textgreater{},value);\textasciicircum{} \tn 
% Row Count 14 (+ 2)
% Row 7
\SetRowColor{white}
Show error and scroll to field & \textasciicircum{}g\_form.showErrorBox(\textless{}fld\textgreater{},msg,true/false);\textasciicircum{} \tn 
% Row Count 17 (+ 3)
% Row 8
\SetRowColor{LightBackground}
Add Options to Choice filed & \textasciicircum{}g\_form.addOption(\textless{}fld\textgreater{},value,label,index);\textasciicircum{} \tn 
% Row Count 20 (+ 3)
% Row 9
\SetRowColor{white}
Remove Options from Choice field & \textasciicircum{}g\_form.removeOption(\textless{}fld\textgreater{},value);\textasciicircum{} \tn 
% Row Count 22 (+ 2)
% Row 10
\SetRowColor{LightBackground}
Clear all Options from Choice Field & \textasciicircum{}g\_form. clearOptions(\textless{}fld\textgreater{});\textasciicircum{} \tn 
% Row Count 24 (+ 2)
% Row 11
\SetRowColor{white}
Get Reference field Value and Attributes & \textasciicircum{}g\_form.getReference(\textless{}fld\textgreater{},callbackfunction);\textasciicircum{} \tn 
% Row Count 27 (+ 3)
% Row 12
\SetRowColor{LightBackground}
Flash a particular field & \textasciicircum{}g\_form.flash(table.name,color,no of flashes)\textasciicircum{} \tn 
% Row Count 30 (+ 3)
\end{tabularx}
\par\addvspace{1.3em}

\vfill
\columnbreak
\begin{tabularx}{5.377cm}{x{2.4885 cm} x{2.4885 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Field Based APIs (cont)}}  \tn
% Row 13
\SetRowColor{LightBackground}
Get Integer Value of Field & \textasciicircum{}g\_form.getIntValue(\textless{}fieldname\textgreater{});\textasciicircum{} \tn 
% Row Count 2 (+ 2)
% Row 14
\SetRowColor{white}
Get Decimal Value of Field & \textasciicircum{}g\_form.getDecimalValue(\textless{}fieldname\textgreater{});\textasciicircum{} \tn 
% Row Count 4 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{5.377cm}}{\textless{}fld\textgreater{} Represent the field name on which the function has to work \newline value - is something what you have to set. \newline true / false - true is for enabling, false is for disable}  \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{2.4885 cm} x{2.4885 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{User Objects}}  \tn
% Row 0
\SetRowColor{LightBackground}
User name of the current user e.g. employee & g\_user.userName \tn 
% Row Count 3 (+ 3)
% Row 1
\SetRowColor{white}
First name of the current user e.g. Joe & g\_user.firstName \tn 
% Row Count 5 (+ 2)
% Row 2
\SetRowColor{LightBackground}
Last name of the current user e.g. Employee & g\_user.lastName \tn 
% Row Count 8 (+ 3)
% Row 3
\SetRowColor{white}
sys\_id of the current user e.g. \seqsplit{681ccaf9c0a8016400b98a06818d57c7} & g\_user.userID \tn 
% Row Count 12 (+ 4)
% Row 4
\SetRowColor{LightBackground}
if the current user has the role specified, false otherwise. ALWAYS returns true if the user has the 'admin' role. & g\_user.hasRole(\textless{}rolename\textgreater{}) \tn 
% Row Count 18 (+ 6)
% Row 5
\SetRowColor{white}
if the current user has the exact role specified, false otherwise, regardless of 'admin' role. & g\_user.hasRoleExactly(\textless{}rolename\textgreater{}) \tn 
% Row Count 23 (+ 5)
% Row 6
\SetRowColor{LightBackground}
if the current user has at least one role specified, false otherwise. & g\_user.hasRoles(\textless{}rolename1\textgreater{},\textless{}rolename2\textgreater{}) \tn 
% Row Count 27 (+ 4)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{1.74195 cm} x{3.23505 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Related List APIs}}  \tn
% Row 0
\SetRowColor{LightBackground}
Show Related List & \textasciicircum{}g\_form.showRelatedList(\textless{}relatedlisttablename\textgreater{})*\textasciicircum{} \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
Hide Related List & \textasciicircum{}g\_form.hideRelatedList(\textless{}relatedlisttablename\textgreater{})\textasciicircum{} \tn 
% Row Count 4 (+ 2)
% Row 2
\SetRowColor{LightBackground}
Show All Related Lists & \textasciicircum{}g\_form.showRelatedLists();\textasciicircum{} \tn 
% Row Count 6 (+ 2)
% Row 3
\SetRowColor{white}
Hide All Related Lists & \textasciicircum{}g\_form.hideRelatedLists();\textasciicircum{} \tn 
% Row Count 8 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{2.18988 cm} x{2.78712 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Sections based API}}  \tn
% Row 0
\SetRowColor{LightBackground}
Show/Hide a Section & \textasciicircum{}g\_form.setSectionDisplay(\textless{}sectionname\textgreater{},true/false);\textasciicircum{} \tn 
% Row Count 3 (+ 3)
% Row 1
\SetRowColor{white}
Get All Sections* & \textasciicircum{}g\_form.getSectionNames();\textasciicircum{} \tn 
% Row Count 5 (+ 2)
% Row 2
\SetRowColor{LightBackground}
Get All Sections** & \textasciicircum{}g\_form.getSections();\textasciicircum{} \tn 
% Row Count 7 (+ 2)
% Row 3
\SetRowColor{white}
Check whether section is Visible & \textasciicircum{}g\_form.isSectionVisible(\textless{}sectionname\textgreater{});\textasciicircum{} \tn 
% Row Count 9 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{5.377cm}}{{\emph{Returns all the sections including the invisible ones, \newline }}*Not available on Mobile Platform \newline \textless{}sectionname\textgreater{} : the section name in ServiceNow is created by replacing the 1st space by "\_" and trimming rest of the spaces, for ex :if a section on form is created as "Section Specific API" then section name is "section\_specificapi"}  \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{2.4885 cm} x{2.4885 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Decorations API}}  \tn
% Row 0
\SetRowColor{LightBackground}
Add decorations(not applicable for Catalog Client Scripts) & \textasciicircum{}g\_form.addDecoration(\textless{}fld\textgreater{},iconname,titleforicon);\textasciicircum{} \tn 
% Row Count 3 (+ 3)
% Row 1
\SetRowColor{white}
Remove Decorations(not applicable for Catalog Client Scripts) & \textasciicircum{}g\_form.removeDecoration(\textless{}fld\textgreater{},iconname,titleforicon);\textasciicircum{} \tn 
% Row Count 7 (+ 4)
% Row 2
\SetRowColor{LightBackground}
LiveUpdate running on form* & \textasciicircum{}g\_form.isLiveUpdating()\textasciicircum{} \tn 
% Row Count 9 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{5.377cm}}{*Live update can detect any change of the data on the form from another session.}  \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}{HTML based APIs}}  \tn
% Row 0
\SetRowColor{LightBackground}
Control a Field & \textasciicircum{}g\_form.getControl(\textless{}fldname\textgreater{})\textasciicircum{} \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
Get an HTML Element from Parameter* & \textasciicircum{}g\_form.getElement(\textless{}parameter\textgreater{})\textasciicircum{} \tn 
% Row Count 4 (+ 2)
% Row 2
\SetRowColor{LightBackground}
Get HTML element of Option** & \textasciicircum{}g\_form.getOption(\textless{}fieldname\textgreater{},value);\textasciicircum{} \tn 
% Row Count 6 (+ 2)
% Row 3
\SetRowColor{white}
Get HTML element of Form & \textasciicircum{}g\_form.getFormElement()\textasciicircum{} \tn 
% Row Count 8 (+ 2)
% Row 4
\SetRowColor{LightBackground}
Get HTML element of HelpText & \textasciicircum{}g\_form.getHelpTextControl(\textless{}fldname\textgreater{});\textasciicircum{} \tn 
% Row Count 10 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{5.377cm}}{{\emph{Not available in the Mobile and Service Portal \newline }}*The method will not work on readonly fields, and if the field is not present on the form it will result in null.}  \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{1.64241 cm} x{3.33459 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Action Specific API}}  \tn
% Row 0
\SetRowColor{LightBackground}
Submit a form & \textasciicircum{}g\_form.submit(actionName)\textasciicircum{} \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
Save a form & \textasciicircum{}g\_form.save()\textasciicircum{} \tn 
% Row Count 3 (+ 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}{Best Practices Client Scripting}}  \tn
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{{\bf{Use UI policies instead of Client scripts : }} \textasciicircum{}For basics like making field readonly, mandatory best practice suggests to use UI Policies.\textasciicircum{} \newline % Row Count 3 (+ 3)
{\bf{Always use isLoading check when in onChange Client Scripts : }} \textasciicircum{}All the onChange client script will get executed onLoad as well, always check whether the form is loading by isLoading function\textasciicircum{} \newline % Row Count 7 (+ 4)
{\bf{Avoid Using GlideRecord function in Client script : }} \textasciicircum{}Replace the calls by GlideAjax\textasciicircum{} \newline % Row Count 9 (+ 2)
{\bf{Avoid DOM(manipulation of form elements) : }} \textasciicircum{}As all the elements might be changed in the future release, and to avoid complications avoid doing DOM\textasciicircum{} \newline % Row Count 13 (+ 4)
{\bf{Use g\_scratchpad to minimise server calls :}} \textasciicircum{}When working with lot of data write a Display Business Rule and make the data available to Client Side\textasciicircum{} \newline % Row Count 17 (+ 4)
{\bf{When using JQuery in Client Scripts : }}\textasciicircum{}Instance before london, has no possibility of isolating a JQuery Script, but instances in London and above has a strict client mode, where methods like window, eval would only work if isolation is turned on.\textasciicircum{}% Row Count 23 (+ 6)
} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}


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

\end{document}