Name

not( )

Synopsis

                     boolean not(boolean b)

The not( ) function inverts its argument; that is, false becomes true and true becomes false. For example, not(3 > 2) is false, and not(2+2=5) is true. Non-Booleans are converted as by the boolean() function before being processed.

Get XML in a Nutshell, 3rd Edition now with the O’Reilly learning platform.

O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.