Editing Help:Template (section)

==Template limits==
{{details|Help:Template limits}}
{{shortcut|WP:INCLUDELIMIT}}
{{Anchor|Expand limits}}
'''"Post-expand include size" limit.''' When templates are rendered or expanded to HTML for viewing in your browser, they use memory. This is called the "post-expand include size" and has a limit of 2,048,000&nbsp;bytes. This size is included as an invisible comment in the HTML output—use your browser's view source feature to show the raw HTML and search for "newpp". The report will look like:
<syntaxhighlight lang="html">
<!--
NewPP limit report
Preprocessor node count: 2382/1000000
Post-expand include size: 63476/2048000 bytes
Template argument size: 9517/2048000 bytes
Expensive parser function count: 2/500
-->
</syntaxhighlight>

The example shows that template expansion is using 63,476&nbsp;bytes out of 2,048,000&nbsp;bytes of available memory.

'''Display problem.''' If too many templates are included on a page, the post-expand include size may exceed the limit. When this happens, templates after the limit will no longer expand and will instead display as a wikilink (for example, {{red|1=<u>Template:{{var|Template name}}</u>}}). Common causes are the inclusion of too many [[Help:Citation Style 1|citation templates]], [[WP:NAVBOX|navbox templates]], and/or [[Wikipedia:WikiProject Flag Template|flag templates]]. To resolve this problem [[WP:Substitution|substitute]] templates, directly [[Help:Template limits#invoke syntax|invoke]] modules, remove templates, or [[WP:Splitting|split]] the page.

'''Non-rendered tranclusions still count towards limit.''' For example, a page which contains only <code><nowiki>{{#if:{{:Main Page}}}}</nowiki></code> would still have a post-expand include size even though it would have no output at all.

The same applies to [[WP:Lua|Scribunto modules]]. For example, <code><nowiki>{{#invoke:Test|main}}</nowiki></code> would still increase post-expand include size even if Module:Test were simply:
<syntaxhighlight lang="lua">
mw.getCurrentFrame():preprocess "{{msgnw::Main Page}}" -- remove this line and post-expand include size becomes zero
return {main = function() end} -- p.main() has no return value

</syntaxhighlight>