28 lines
778 B
Clojure
28 lines
778 B
Clojure
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(def the-world (ref "hello"))
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(meditations
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"In the beginning, there was a word"
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(= __ (deref the-world))
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"You can get the word more succinctly, but it's the same"
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(= __ @the-world)
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"You can be the change you wish to see in the world."
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(= __ (do
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(dosync (ref-set the-world "better"))
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@the-world))
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"Alter where you need not replace"
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(= __ (let [exclamator (fn [x] (str x "!"))]
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(dosync
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(alter the-world exclamator)
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(alter the-world exclamator)
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(alter the-world exclamator))
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@the-world))
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"Though you should keep transactions as short as possible"
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(= "better!!!!!!" (letfn [(exclamator [x] (str x "!"))]
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(dosync
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(alter the-world ___))
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@the-world)))
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