The application of advice or other aspect transformations is often called __________.

Refs _____

The Clojure reader can be extended using _____

(letfn [ (t [] (true? (some true? ["false"])))] (t))

What's the value returned by... (let [[x y [z]] [2 4 [8 9]]] (list x y z))

How many ways can you safely share mutable data using Clojure?

What's a difference between quote (') and syntax-quote (`) macro characters?

In Clojure, tail-call optimization is _____

To represent a boxed decimal in Clojure, you would use ____________.

Locks _____

Vars _____