imported>Ahecht: {{lua|Module:If elseif}}

2025-11-07T17:25:28Z

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{{lua|Module:If elseif}}
Tests a series of expressions, which are evaluated either as blank/noblank or, if {{para|yesno}} is set, using {{tl|Yesno}}. Functionally equivalent to a <code>if...elseif...elseif...else</code> string butore efficient than nesting <code><nowiki>{{#if:}}</nowiki></code> parser functions from a [[WP:PEIS|post-expand include size]] standpoint.

== Usage ==
<code><nowiki>{{</nowiki>#if:''test 1''|''value 1''|<nowiki>{{</nowiki>#if:''test 2''|''value 2''|<nowiki>{{</nowiki>#if:...|''default value''<nowiki>}}}}}}</nowiki></code> can be replaced with

<code><nowiki>{{</nowiki>If elseif|''test 1''|''value 1''|''test 2''|''value 2''|...|''default value''<nowiki>}}</nowiki></code> or

<code><nowiki>{{</nowiki>If elseif|if1 = ''test 1''|then1 = ''value 1''|if2 = ''test 2''|then2 = ''value 2''|...|else = ''default value''<nowiki>}}</nowiki></code>

== Examples ==
* <code><nowiki>"{{If elseif|{{{empty1|}}}|1|{{{empty2|}}}|2|all empty}}"</nowiki></code> → "{{If elseif|{{{empty1|}}}|empty1|{{{empty2|}}}|empty2|all empty}}"

* <code><nowiki>"{{If elseif|if1={{{empty1|}}}|then1=1|if2={{{notempty2|somevalue}}}|then2=2|else=all empty}}"</nowiki></code> → "{{If elseif|if1={{{empty1|}}}|then1=1|if2={{{notempty2|somevalue}}}|then2=2|else=all empty}}"

* <code><nowiki>"{{If elseif|{{#expr:1<0}}|1<0|{{#expr:4<0}}|4<0|{{#expr:-1<0}}|-1<0|{{#expr:-2<0}}|-2<0|None are true|yesno=true}}"</nowiki></code> → "{{If elseif|{{#expr:1<0}}|1<0|{{#expr:4<0}}|4<0|{{#expr:-1<0}}|-1<0|{{#expr:-2<0}}|-2<0|None are true|yesno=true}}"
** Note the use of {{para|yesno|true}}. Without it, the module returns "{{If elseif|{{#expr:1<0}}|1<0|{{#expr:4<0}}|4<0|{{#expr:-1<0}}|-1<0|{{#expr:-2<0}}|-2<0|None are true}}" since #expr returns <code>0</code> when the statement is false, which is not blank.

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[[Category:If-then-else templates]]
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imported>Ahecht: {{lua|Module:If elseif}}