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GNU Smalltalk User's Guide

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4.7 Code blocks, part two

In the last chapter, we looked at how code blocks could be used to build conditional expressions, and how you could iterate across all entries in a collection.(30) We built our own code blocks, and handed them off for use by system objects. But there is nothing magic about invoking code blocks; your own code will often need to do so. This chapter will shows some examples of loop construction in Smalltalk, and then demonstrate how you invoke code blocks for yourself.

4.7.1 Integer loops  Well, Smalltalk too has them
4.7.2 Intervals  And of course here's a peculiar way to use them
4.7.3 Invoking code blocks  You can do it, too


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