@pichalite
Yes, I created a copy of partials/topics_list.tpl. Then I renamed it to partials/topics_list_diy.tpl

I want to import different partial templates based on IF statement. Maybe a bug here:

<!-- IF loggedIn -->
  <!-- IMPORT partials/topics_list.tpl -->
<!-- ELSE -->
  <!-- IMPORT partials/topics_list_diy.tpl -->
<!-- ENDIF loggedIn -->

RangeError: Maximum call stack size exceeded
at String.match (native)
at checkConditional (D:\workspace\NodeBB->1.0.3\node_modules.npminstall\templates.js\0.3.4\templates.js\lib\templates.js:227:26)
at checkConditionals (D:\workspace\NodeBB->1.0.3\node_modules.npminstall\templates.js\0.3.4\templates.js\lib\templates.js:223:27)
at parseValue (D:\workspace\NodeBB-1.0.3\node_modules.npminstall\templates.js\0.3.4\templates.js\lib\templates.js:389:14)

@Bri @pichalite
I got it now , thank you guys

@Bri
Great!! Thank you very much.

Besides, do you know the following html mean?

<div component="composer" class="...

Hello everyone ,

I want to modify the view of 'composer', where is the template file of 'composer' ?

Besides, what's the 'component' attribute mean here ?

Any help will be appreciated