What query methods are supported for null objects?

All common query methods (see the section “What common query methods are supported?”) are supported for null objects.

You can call any method on a null object — the call will succeed, and the return value will be null. Thus, null.somemethod() returns null.

When a null object is used with the comparison operators =, ==, <, >, >=, or <=, False is always returned. So, null = 5 returns False. The only exception is when comparing two null objects with = or ==, in which case the equality operators return True. The inequality operator <> always returns true when comparing a null object to non-null — unless both operands are null.


Example	Result
`null = 3`	False
`null = 'test'`	False
`null = null`	True
`null <> 3`	True
`null <> null`	False
`3 > null`	False
`null > null`	False
`null >= null`	False