27. warning
| Chapter 2. Predefined commands |

## 27. warning

    error(message_part, ..., message_part)

Concatenate all the arguments after converting them to strings, then print the resulting warning message on the console.

See also commands `error()` and `message()`.

Examples:

    warning("FIXME");

    warning("Expected ", $expectedCount, ", got ", $count);

26. variable |  | 28. wrap-element