%% javascript
element.append('foo')

#% javascript
for (var i=0;i<4;i++) {
  element.append(i)
}

#% latex
my $x = '\begin{equation*} \frac{1}{2} \end{equation*}';
$x

%% latex(equation)
'\frac{1}{2}'

#% latex(equation) > html
say '&frac12;';
'\frac{1}{2}';

Rat.^find_method($_)
    .wrap( sub ($x) {
        '\frac{' ~ $x.numerator ~ '}{' ~ $x.denominator ~ '}'
    } ) for <gist Str>;

%% latex(equation)
"{0.2} + {0.9} - {0.1}"

%% latex(equation)
my $x = 2/3;
my $y = 1/8;
"$x + $y == { $x + $y }"