empty

Constant

The word empty is a constant whose value is "" – an empty string containing no characters. In SenseTalk, empty is used a lot. It is the value that is usually returned any time there is no value to return from a function or expression. For example, these expressions will all result in an empty value:

  character 9 of "hello"

  item 6 of (1,3,5,9)

  property "age" of (name:"Fred", occupation:"Zookeeper")

Keyword

• an empty list
• an empty object
• an empty property list
• new empty object