Module:Params/doc/examples/check for unknown parameters: Difference between revisions
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Use ‘discarding’ instead of ‘with_name_not_matching’ |
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<includeonly>{{#ifexpr:{{#invoke:params|discarding|hello|discarding|wind|count}} > 0 |
<includeonly>{{#ifexpr:{{#invoke:params|discarding|hello|discarding|wind|count}} > 0 |
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|{{ |
|{{Error|Error: The only parameters accepted are {{para|hello}} and {{para|wind}}.}} |
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|Everything is good: do something |
|Everything is good: do something |
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}}</includeonly><noinclude>{{Documentation|heading=[[File:Test Template Info-Icon - Version (2).svg|50px|alt=|link=]] Template documentation}}</noinclude> |
}}</includeonly><noinclude>{{Documentation|heading=[[File:Test Template Info-Icon - Version (2).svg|50px|alt=|link=]] Template documentation}}</noinclude> |
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Latest revision as of 19:46, 26 September 2024
This example template shows to use {{#invoke:params|discarding|...}} to check for unknown parameters.
Usage
[edit]For instance, writing
{{module:params/doc/examples/check for unknown parameters
| hello = world
| wind = surfing
}}
will generate
- Everything is good: do something
while writing
{{module:params/doc/examples/check for unknown parameters
| hello = world
| wind = surfing
| wrong = ups!
}}
will generate
- Error: The only parameters accepted are
|hello=and|wind=.
For simple cases like this specialized modules are available; you might want to have a look at:
- {{#invoke:Check for unknown parameters|check}}
- {{#invoke:Check for deprecated parameters|check}}
- {{#invoke:Check for clobbered parameters|check}}
- {{#invoke:Parameter validation|validateparams}}
- {{#invoke:TemplatePar|valid}}