homework05: Getting to know Clojure

homework05

• Objectives
• Grading
• Getting started with Clojure
• Procedure
• Clojure resources

Due date

2015-04-17 00:00 CST

Fork from

https://github.com/nau-comp3320/homework05/fork

Objectives

When you have completed this homework, you should be familiar with:

• Clojure’s primitives

• Clojure’s collections

• Making use of Clojure’s sequence abstraction

• How to write anonymous functions in Clojure

• Basic ideas on how to use higher order functions

• Using map, filter, and reduce

Grading

Grading is based on the correctness of the submission. This assignment is due at midnight at the end of Thursday, 17 Apr 2015.

Getting started with Clojure

In order to complete this assignment, you will need to set up a Clojure development environment that uses Leiningen. I also highly recommend you use IntelliJ IDEA with the Cursive Clojure plug-in. I have proviced instructions on how to setup your environment and get started on this assignment in Getting started with Clojure document.

Procedure

In this assignment, you will be editing the file at src/homework05.clj. Throughout this file you will find explanatory text as well as numerous lines of the form (is (assertion? __)). The goal in this exercise is to fill in the blanks (the __) with Clojure code that satisfies these asserrtions.

In order to keep track of your progress, you can either use the Run assignment run configuraiton from within IntelliJ IDEA or invoke Leiningen directly with lein run. It will show you the first error it encounters by printing out something like:

FAIL in (primitives) (homework05.clj:25)
integer literals
expected: (integer? __)
  actual: (not (integer? __))

Ran 13 tests containing 127 assertions.
1 failures, 0 errors.

The top line shows you the line within the assignment where the error occurred. Whenever you change the file, it should rerun the tests. Just continue until you get to the end.

Clojure resources

• Official Clojure documentation, for this assignment check out The Reader, Data Structures, and Sequences

• Clojure Cheat Sheet

• Clojure for the Brave and True, an upcoming book that should be a beginner-friendly guide to Clojure

• Clojure from the Ground Up, another beginner-friendly guide to Clojure

• Functional Programming and Design, materials from a course that teaches functional programming using Clojure

• Clojure Koans, Clojure exercises you can run locally

• 4Clojure, Clojure exercises on the web