August 2014
Intermediate to advanced
120 pages
2h 45m
English
Content preview from Mastering Clojure Macros
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Clojure Koans
One helpful set of exercises for Clojure newcomers, the Clojure Koans,[26] has its code structure based on a macro called meditations that presents a boilerplate-free interface. Perhaps you’ve already tried these out as I suggested in the Introduction and wondered how it worked under the hood. The koans ask you to fill in the blanks in order to make each test pass:
| apis/koans_1.clj | |
| | (meditations |
| | "We shall contemplate truth by testing reality, via equality" |
| | (= __ true) |
| | |
| | "To understand reality, we must compare our expectations against reality" |
| | (= __ (+ 1 1))) |
But in the interface that the meditations macro presents, there are no tests! We just see some (more or less helpful) text vaguely describing an expression ...
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