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* <code>util:if(true(), 123, 456)</code> returns {{Code|123}}.
* <code>util:if(0, 'wrong!')</code> returns an empty sequence.
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==util:or==
{{Mark|Introduced with Version 9.1:}}
{| width='100%'
|-
| width='120' | '''Signatures'''
|{{Func|util:or|$items as item()*, $default as item()*|item()*}}
|-
| '''Summary'''
|Returns {{Code|$items}} if it is a non-empty sequence. Otherwise, returns {{Code|$default}}. The function is equivalent to the expression <code>if(exists($items)) then $items else $default</code>.
|-
| '''Examples'''
|
* <code>util:or(123, 456)</code> returns {{Code|123}}.
* <code>util:or(1[. = 0], -1)</code> returns {{Code|-1}}.
|}
