JSX/JavaScript lstlistings language definition

jsx-js-listingstyle.tex

% JavaScript language definition
\lstdefinelanguage{JavaScript}{
    % common to all of JavaScript
    keywords=[1]{typeof, new, true, false, catch, function, return, null},

    % variable declarations
    keywords=[2]{const, let, var},

    % control flow
    keywords=[3]{if, catch, switch, if, in, while, do, else, case, break},

    % classes and exports
    keywords=[4]{class, export, boolean, throw, implements, import, this, default},

    % react hooks
    keywords=[5]{useEffect, useState, useRef, useCallback, useMemo, useLayoutEffect, useReducer, useContext, useImperativeHandle, useDebugValue},

    % comments and strings
    comment=[l]{//},
    morecomment=[s]{/*}{*/},
    sensitive=true,     % should be case-sensitive
    morestring=[b]',
    morestring=[b]"
}

% my custom style (use as you wish)
% custom colors
\definecolor{halfgray}{gray}{0.55}
\definecolor{frame}{RGB}{207, 207, 207}
\definecolor{background}{RGB}{247, 247, 247}
\definecolor{JS-keyword}{RGB}{42,0.0,255}
\definecolor{JS-string}{RGB}{127,0,85}
\colorlet{JS-number}{magenta!60!black}
\definecolor{JS-comment}{rgb}{0,0.5,0}
\colorlet{JS-punct}{red!60!black}
\definecolor{JS-obj-brace}{RGB}{20,105,176}
\definecolor{JS-lst-brace}{RGB}{20,105,176}

% style definition
\lstdefinestyle{JS}{
    % language grammar
    language=JavaScript,
    % formatting and styling
    keepspaces=true,
    showspaces=false,
    showstringspaces=false,
    rulecolor=\color{frame},
    frame=single,
    frameround={t}{t}{t}{t},
    framexleftmargin=6mm,
    numbers=left,
    xleftmargin=20pt,
    numberstyle=\tiny\color{halfgray},
    backgroundcolor=\color{background},
    basicstyle=\scriptsize\ttfamily,
    breakatwhitespace=false,         
    breaklines=true,                 
    captionpos=b,                                     
    numbers=left,                    
    numbersep=8pt,                              
    showtabs=false,                  
    tabsize=2,
    stepnumber=1,
    escapeinside={(*!}{!*)},
    % colors and other styles    
    commentstyle=\color{JS-comment},
    keywordstyle=\color{JS-keyword},
    stringstyle=\color{JS-string},
    literate=
        *{0}{{{\color{JS-number}0}}}{1}
        {1}{{{\color{JS-number}1}}}{1}
        {2}{{{\color{JS-number}2}}}{1}
        {3}{{{\color{JS-number}3}}}{1}
        {4}{{{\color{JS-number}4}}}{1}
        {5}{{{\color{JS-number}5}}}{1}
        {6}{{{\color{JS-number}6}}}{1}
        {7}{{{\color{JS-number}7}}}{1}
        {8}{{{\color{JS-number}8}}}{1}
        {9}{{{\color{JS-number}9}}}{1}
        {:}{{{\color{JS-punct}:}}}{1}
        {,}{{{\color{JS-punct},}}}{1}
        {\{}{{{\color{JS-obj-brace}{\{}}}}{1}
        {\}}{{{\color{JS-obj-brace}{\}}}}}{1}
        {[}{{{\color{JS-lst-brace}{[}}}}{1}
        {]}{{{\color{JS-lst-brace}{]}}}}{1},
}

Total LaTex (or other Tex) amateur here. I was trying to use your definition and discovered that the empty lines in the lstdefinelanguage command is probably messing up with my compilation. I'm using pdflatex if that matters.