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Line 501: This makes it possible to pass a block to eg. collections to enumerate elements up-to and until some condition is met. For example, if we need a helper method, which returns the first element from a dataset which meets some condition, we can write: <lang smalltalk>findSomeElementWhichMeetsCondition:conditionBlock thenDo:actionBlock ifNone:failBlock▼ ~~<lang smalltalk>~~ ▲findSomeElementWhichMeetsCondition:conditionBlock thenDo:actionBlock ifNone:failBlock dataSet do:[:eachElement \| (conditionBlock value:eachElement) ifTrue:[

Category:Smalltalk (view source)