Missing functions

[Hartrik]

• Important
  • fn - e.g. (fn [x] (* x x)
  • def
  • defn - e.g. (defn pow [x] (* x x)
  • let - e.g. (let [a 1 b 2] (+ a b)) >> 3
  • cond (switch alternative) - e.g. (cond (< n 0) "negative" (> n 0) "positive" "zero"))
• Lower priority
  • Some of high-order functions: apply, map, reduce...
  • Working with exceptions: throw, try-catch-finally
  • Some kind of for-each (on collection)
  • load - evaluates script and returns last value or nil
  • Java interop
    • class
    • instance of
    • Java method call
    • Java static method call
    • Java constructor call
    • as - e.g. (as @java.lang.Float 20) (in Groovy: 20 as java.lang.Float)
    • Function is Groovy's Closure (or at least Runnable & Callable...)
    • Object construction (like Groovy's as keyword; depends on previous point)