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This is the documentation for the template Template:P3


The template {{P3}} returns its third parameter.

[edit] Pn

Related Templates
P1 Return parameter 1
P2 Return parameter 2
P3 Return parameter 3

The templates {{Pn|param 1|param 2|param 3|...}}, where "n" is a number, each return the corresponding param n.

They are typically used in other templates when there are several values that can be returned, one of which is the named parameter. Whether to use Pn is calculated.


{{ {{#if: {{{1|}}} | P1 | P2 }} |{{{1}}}|{{{2|}}}}}

returns parameter 1 if it's non blank, otherwise parameter 2.

This usage might be chosen because the following more straight forward implementation would have the undesired side effect of stripping whitespace from the beginning and end of parameters 1 and 2 (a side effect of #if:).

{{#if: {{{1|}}} | {{{1}}} | {{{2|}}} }}

To see how this template is implemented, edit this page and examine the portion between <includeonly> and </includeonly>.

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