null \ Language (API) \ Wiring ALPHA 1.0 Search wiring.org.co: Language (A-Z) \ Libraries \ Environment \ Learning \ Hardware Reference for Wiring version 0027+. If you have a previous version, use the reference included with your software. If you see any errors or have any comments, let us know. Name null Examples char str[] = "some characters"; if( str != null) { Serial.println("Array is not null"); // Prints 'Array is not null' } Description Special value used to signify the target is not a valid data element. In Wiring, you may run across the keyword null when trying to access data which is not there. It can also be used as NULL. Syntax null NULL Usage Application Updated on September 17, 2010 12:29:10pm PDT Wiring is an open project initiated by Hernando Barragán. It is developed by a small team of volunteers. © Info, Processing © Info