Home Contents | # mtd16:isEmpty | Mtd16 | Core4 Lua Commands

## SYNOPSIS

flag = msg:isEmpty()

## DESCRIPTION

Checks if msg is empty, in other words, it contains no data. A message containing invalid data is not empty, but neither is it valid.

## RETURN VALUE

Returns a boolean indicating if msg is empty.

## EXAMPLE

> >
msg = mtd16.new() print(msg:isEmpty())
true
> >
msg:appendMessageCode(0xF00F) print(msg:isEmpty())
false

## SEE ALSO

#mtd16, mtd16.answerCode, mtd16.fromData, mtd16.fromText, mtd16.isNestedTag, mtd16.lutType, mtd16.new, mtd16.tagCode, mtd16.tagName, mtd16.tagNumber, mtd16.tagType, mtd16:append, mtd16:appendMessageCode, mtd16:contains, mtd16:get, mtd16:getNumber, mtd16:getString, mtd16:isValid, mtd16:messageCode, mtd16:nextMessageCode, mtd16:pairs, mtd16:rewind, mtd16:tags, mtd16:toData, mtd16:toText, mtd16:trace, tostring(mtd16)