| Index

| Reference for Wiring 1.0 (ALPHA) 0019+. 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.print(c);  // Prints 'some characters'
    }
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 |  | Web & Application