Building Abstractions with Functions - The Elements of Programming - Conditional Expressions and Predicates - evaluation, compound expressions
Structure and Interpretation of Computer Programs: JavaScript Edition(Harold Abelson(著)、Gerald Jay Sussman(著)、Julie Sussman(著)、The MIT Press)のChapter 1(Building Abstractions with Functions)、1.1(The Elements of Programming)、1.1.6(Conditional Expressions and Predicates)、Exercise 1.4の解答を求めてみる。