====== StrIsEmpty ======
{{tag>string}}
''bool StrIsEmpty(str s)''

===== Description =====
Returns true if s is an empty string (''%%""%%''). 

A string that consists of only whitespace (e.g. ''%%" "%%'') is not considered empty.

<note important>''0'' is **not** an empty string. It is not a string at all.</note>

===== Examples =====
<code>
StrIsEmpty("") -> true
StrIsEmpty(" ") -> false
StrIsEmpty("hello") -> false
</code>