XQuery & XPath users, watch out - i spent a day debugging!

Turns out in BaseX & i think XPath 4 (upcoming), `else` clauses are optional.

This is unexpected in an expression language -

`let $name := if ($p) then get-name($p)
return some-func($name)`

is the same as

`let $name := if ($p) then get-name($p) else ( )
return some-func($name)`

but in a multi-screen if/then/else it’s more likely you just forgot the else() or mismatched some parens.

#xquery #MarkupMonday #basex #xpath #xslt4

https://www.fromoldbooks.org/Search/?kw=spooky&wantedorder=popular&rpp=200

Since the night of the dead, all soul’s, or halloween is almost upon us, hereś a search you can do to see the most popular #spooky images on #fobo such as this 1878 #grotesque #fountain #mask

Could be Tom Baker on discovering that the Daleks were behind Donald Trump 🙂

You can also add `shoquery=text/plain` to the end of the URL to see the XQuery that was generated for your search :-)

#vintageArt #scary #stockImage #XQuery #BaseX