GNU Smalltalk User's Guide
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.
