optevo questions

optevo answers

• Run one Clojure test (not all tests in a namespace), with fixtures, from the REPL
• Explain `core.reducers` library in layman's term
• Extend Clojure protocol to a primitive array
• IllegalStateException: Attempting to call unbound fn in macro
• clojure assoc-if and assoc-if-new
• How can I get Clojure :pre & :post to report their failing value?