Concatenating a variable + string in Jade file
use #{} notation if you want to interpolate a variable in the contents of an element. you can just use the variable names straight up if you want to use them in attributes.
link(rel='stylesheet', href='/stylesheets/' + pref + '.css')equivalent:
link(rel='stylesheet', href='/stylesheets/' + locals.pref + '.css')when to use #{}:
a(href='/stylesheets/' + locals.pref + '.css') View the stylesheet at #{pref}
Jade files are compiled in Node.js env.
Node.js (from v4.0.0) supports template literals, so
link(rel='stylesheet', href=`/stylesheets/${pref}.css`)equivalent:
link(rel='stylesheet', href='/stylesheets/' + pref + '.css')