What is the element constructor in xQuery?

Question

I\'m reading a book about xQuery and it is full of expression like element constructor... and my question is:

What is the element constructor and is \

Answer 1

I'm surprised that a book should use the term without explaining it, but your next port of call should be the W3C XQuery specification,

https://www.w3.org/TR/xquery-31/#id-constructors

Unlike many language specifications, the XQuery specs are designed to be quite readable by ordinary users, provided you can follow BNF, and they have lots of examples.