How to use empty operation in Function on sequence Using XPath in Xml

In this article I will explain empty operation of function on sequence.
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Introduction

The empty operation of Function on sequence can be used to return true if the value of the arguments is an empty sequence, otherwise it returns false.

Syntax
 

empty ((item,item,item,item))

Example

empty ((remove( "Name" ,"address", "contact", "email"), 1))
empty ((remove( "Name" ,"address", "contact", "email"), 4))
empty ((remove( "Name" ,"address", "contact", "email"), 10))
empty ((remove( "Name" ,"address", "contact", "email"), 0))

Output

false
true
true
false

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