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Erschienen in:
2016 | OriginalPaper | Buchkapitel
5. Blocks and Iterators
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Abstract
Intuitively, a block of code is a set of statements that are grouped together. For instance, statements within a function (function body) or the block of code to be executed inside the while loop. However, Ruby has a special block feature that (while still being a group of one or more statements usually enclosed in flower brackets) has very interesting usages. It is especially useful in the context of iterator methods for collections.