@NULL

Windows ✓Linux ✓macOS ⏳

Syntax

@NULL(<string>)

Description

This function tests whether the enclosed string is empty. The value 1 (true) is returned if it is empty (null), otherwise the function returns null (false).

This function is equivalent to @NOT.

OK

Unchanged.

Example

IF @NULL(%2)
  WARN No command line parameter supplied!
END

See also