Editing Module:Dump/doc (section)

== Dump of parameters ==

A template might invoke the <code>main</code> function in the example [[#Dump of a table for another module|above]]. Any parameters passed to the template or the module can be displayed for debugging. That would be to investigate an unexpected result in a page, for example, [[Albedo]]. To see what parameters are received by a module used in that article, edit the module and insert the following line at the start of the main function:
<syntaxhighlight lang="Lua">
	if true then return require('Module:Dump').parameters(frame) end
</syntaxhighlight>
Do not save the changes. Instead, enter the name of the article (for example, Albedo) in the box under "Preview page with this module", then click Show preview. Any parameters passed to the module in its frame and parent frame are displayed where the result from the module would normally appear.