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127 bytes added ,  17:11, 22 October 2018
If the expression is conditions are nested, a trailing else branch is will be associated with the innermost <code>if</code>. : <pre class="brush:xquery">(: 'd' will be returned if $a and $b yield true :)if ($a) then if($b) then 'c' else 'd'</pre> As in other languages, it is recommendable to use parentheses to make a query better readable:
<pre class="brush:xquery">
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