User:Ans/Template:Wikitext preview/doc

• {{User:Ans/Template:Wikitext preview|<nowiki>{{2x|a}}</nowiki>}} ⟹ {{2x|a}} → aa
• {{User:Ans/Template:Wikitext preview|<nowiki>{{2x|a}}</nowiki>|<nowiki>{{{3}}} ← </nowiki>{{User:Ans/Template:Wikitext preview/syntaxhighlight}}}} ⟹ aa ← {{2x|a}}

This template decode both < and &, while Template:Demo inline decode < but not decode &, so there's no way to demo the wikitext < in Template:Demo inline,

• {{User:Ans/Template:Wikitext preview|<nowiki>"&amp;amp;lt; &amp;lt; &lt; <" </nowiki>}} ⟹ "&amp;lt; &lt; < <" → "&lt; < < <"
  • {{Demo inline|<nowiki>"&amp;amp;lt; &amp;lt; &lt; <" </nowiki>}} ⟹ "&amp;amp;lt; &amp;lt; < <" → "&amp;lt; &lt; < <"