Example
There are two commands to change an atom, swap! and reset!. swap! is given commands, and changes the atom based on its current state. reset! changes the atom's value completely, regardless of what the original atom's value was:
(swap! counter inc) ; => 1
(reset! counter 0) ; => 0
This example outputs the first 10 powers of 2 using atoms:
(def count (atom 0))
(while (< @atom 10)
(swap! atom inc)
(println (Math/pow 2 @atom)))
