Language \ Environment \ Comparison
 
Index
 
  The Processing 1.0 _ALPHA_ Reference is a work in progress.
If you see any errors or have any comments, please write to: reas at groupc.net
Name  

! (logical NOT)

   
Examples   
boolean a = false; 
if (!a) { 
  rect(30, 20, 50, 50); 
} 
a = true; 
if (a) { 
  line(20, 10, 90, 80); 
  line(20, 80, 90, 10); 
}
Description   Inverts the Boolean value of an expression. Returns true if the expression is false and returns false if the expression is true. If the expression (a>b) evaluates to true, then !(a>b) evaluates to false.
   
Syntax   
!expression
   
Parameters  
expression   any valid expression
   
Usage   Web & Application
   
Related   || (logical OR)
&& (logical AND)
if()
   
© 2004 - 2001 Massachusetts Institute of Technology and Interaction Design Institute Ivrea
Processing is an open project initiated by Ben Fry and Casey Reas