ଛାଞ୍ଚ:P2/doc
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The templates P1, P2 and P3 simply return the first, second and third unnamed input parameter respectively. For example:
These templates can be used inside other templates as an alternative to the ଛାଞ୍ଚ:Pf parser function, to switch between outputs based on whether the input is "1", "2" or "3":
Using {{#switch}}, this syntax is equivalent to
except that the parser function strips whitespace between parameters whereas the templates don't.