Conditionals in

About Conditionals

There are a few basic flow control constructs in Clojure. if is the most important conditional expression - it consists of a condition, a "then", and an optional "else". if will only evaluate the branch selected by the conditional.

(if (even? 2) "even" "odd")

cond is a series of tests and expressions. Each test is evaluated in order and the expression is evaluated and returned for the first true test.

(cond (= x 5) "Expression to evaluate when x equals 5"
      (> x 7) "Expression to evaluate when x is greater than 7"
      :else   "Expression to evaluate in all other cases")