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Clojure is a general-purpose language supporting interactive development that encourages a functional programming style, and simplifies multithreaded programming.

9 votes
1 answer
625 views

Accessing the history of a `ref` in Clojure

The documentation for ref shows a :max-history option and states that "refs accumulate history dynamically as needed to deal with read demands." I can see that there is history at the REPL, but I don …
GlenPeterson's user avatar
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47 votes
5 answers
10k views

What did Rich Hickey mean when he said, "All that specificity [of interfaces/classes/types] ...

In Rich Hickey's thought-provoking goto conference keynote "The Value of Values" at 29 minutes he's talking about the overhead of a language like Java and makes a statement like, "All those interfaces …
GlenPeterson's user avatar
  • 14.9k
46 votes
6 answers
9k views

Why is "tight coupling between functions and data" bad?

I found this quote in "The Joy of Clojure" on p. 32, but someone said the same thing to me over dinner last week and I've heard it other places as well: [A] downside to object-oriented programming … So, Clojure has namespaces. How is sticking a function on a class in OOP different from sticking a function in a namespace in Clojure and why is it so bad? …
GlenPeterson's user avatar
  • 14.9k