|
|
|
|
|
|
|
In addition to predicates for testing numbers, Smalltalk offers other
predicates, such as isInteger and isString, that test
instances to determine whether those instances belong to particular
classes:
Workspace Transcript show: 4 isInteger printString; cr; show: 4 isString printString; cr; show: 'four' isInteger printString; cr; show: 'four' isString printString; cr Transcript true false false true