Category:Smalltalk: Difference between revisions
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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: |
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: |
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<lang smalltalk> |
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dataSet do:[:eachElement | |
dataSet do:[:eachElement | |
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(conditionBlock value:eachElement) ifTrue:[ |
(conditionBlock value:eachElement) ifTrue:[ |
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