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'''Module:Check for unknown parameters''' is used to check for uses of unknown parameters in a template or module. It may be appended to a template at the end or called directly from a module.
== Usage ==
=== From a template ===
To sort entries into a tracking category by parameter, use:
* {{mlx|Check for unknown parameters|check|unknown{{=}}<nowiki>[</nowiki>[Category:Some tracking category|_VALUE_]]|arg1|arg2|arg3|argN}}
To sort the entries into a tracking category by parameter with a preview error message, use:
* {{mlx|Check for unknown parameters|check|unknown{{=}}<nowiki>[</nowiki>[Category:Some tracking category|_VALUE_]]|preview{{=}}unknown parameter "_VALUE_"|arg1|arg2|...|argN}}
For an explicit red error message, use:
* {{mlx|Check for unknown parameters|check|unknown{{=}}<span class{{=}}"error">Sorry, I don't recognize _VALUE_</span>|arg1|arg2|...|argN}}
To use Lua patterns, use:
* {{mlx|Check for unknown parameters|check|unknown{{=}}<nowiki>[</nowiki>[Category:Some tracking category|_VALUE_]]|preview{{=}}unknown parameter "_VALUE_"|arg1|arg2|...|argN|regexp1{{=}}header[%d]+|regexp2{{=}}date[1-9]}}
===From a module===
To call from a module, use:
<syntaxhighlight lang="lua">
local checkForUnknownParameters = require("Module:Check for unknown parameters")
local result = checkForUnknownParameters._check(validArgs, args)
</syntaxhighlight>
Where the first set of args are the module args below and the second set of args are the parameters that are checked.
== Parameters ==
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