Yeah it&#x27;s a rule in a lot of style guides. Google for one example: <a href="https:&#x2F;&#x2F;google.github.io&#x2F;styleguide&#x2F;javascriptguide.xml?showone=Strings#Strings" rel="nofollow">https:&#x2F;&#x2F;google.github.io&#x2F;styleguide&#x2F;javascriptguide.xml?show...</a>