This version is out of date, covering development from v9.5.0 to v9.7.3. It is maintained here only for inbound reference links from elsewhere. It is no longer actively updated.

Jump to the current version of aTbRef

Tinderbox v9 Icon


Operator Type: 

Operator Scope of Action: 

Operator Purpose: 

Operator First Added: 

Operator Last Altered: 

 Property  [other Property type actions]

 Item  [operators of similar scope]

 Dictionary, Set & List operations  [other Dictionary, Set & List operations operators]


 As at baseline

Syntax note: Operators without any defined mandatory arguments may omit their empty closing parentheses



A Boolean-type property. Returns true if the dictionary has no keys, and is false otherwise.

$MyDictionary = {cat:animal; dog:animal; rock: mineral}; 

$MyBoolean = $MyDictionary.empty; 

MyBoolean is now false

$MyDictionary = ; (or $MyDictionary = {};)

$MyBoolean = $MyDictionary.empty; 

MyBoolean is now true