My code is executing but the html tags get lost

[radha1990kumari]

<center> <h1>Lab Assignment 
<%*
let re = new RegExp('Lab-(\\d+)_.*');
var myString = tp.file.title;
var match = re.exec(myString); 
var an="0"
if(match!=null)
an=match[1]
tR=an
%>
 </h1>
</center>

[welpdx]

That is because tR is the output of the script.
When you directly assign an to tR, the resulting output is only an and nothing else. It seemed like you lost your html tags, but what actually happened is you basically told the script to output only an when you did tR=an. You would lose any text before and after any script if you used tR=an anywhere in a Templater script.

So, what you want to do is instead is to replace the line tR=an with tR+=an . This way an is inserted between the text you added before and after.

Hope that helps,
Welp

[radha1990kumari]

Thanks it works

[welpdx]

Np