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# alexspurling's solution

## to Anagram in the Clojure Track

Published at Jul 13 2018 · 2 comments
Instructions
Test suite
Solution

Given a word and a list of possible anagrams, select the correct sublist.

Given `"listen"` and a list of candidates like `"enlists" "google" "inlets" "banana"` the program should return a list containing `"inlets"`.

## Source

Inspired by the Extreme Startup game https://github.com/rchatley/extreme_startup

## Submitting Incomplete Solutions

It's possible to submit an incomplete solution so you can see how others have completed the exercise.

### anagram_test.clj

``````(ns anagram-test
(:require [clojure.test :refer [deftest is]]
anagram))

(deftest no-matches
(is (= []
(anagram/anagrams-for "diaper" ["hello" "world" "zombies" "pants"]))))

(deftest detect-simple-anagram
(is (= ["tan"] (anagram/anagrams-for "ant" ["tan" "stand" "at"]))))

(deftest does-not-confuse-different-duplicates
(is (= [] (anagram/anagrams-for "galea" ["eagle"]))))

(deftest eliminate-anagram-subsets
(is (= [] (anagram/anagrams-for "good" ["dog" "goody"]))))

(deftest detect-anagram
(is (= ["inlets"]
(let [coll ["enlists" "google" "inlets" "banana"]]
(anagram/anagrams-for "listen" coll)))))

(deftest multiple-anagrams
(is (= ["gallery" "regally" "largely"]
(let [coll ["gallery" "ballerina" "regally"
(anagram/anagrams-for "allergy" coll)))))

(deftest case-insensitive-anagrams
(is (= ["Carthorse"]
(anagram/anagrams-for "Orchestra" coll)))))

(deftest word-is-not-own-anagram
(is (= [] (anagram/anagrams-for "banana" ["banana"]))))

(deftest capital-word-is-not-own-anagram
(is (= [] (anagram/anagrams-for "BANANA" ["banana"]))))``````
``````(ns anagram)

(defn anagram? [x y]
(let [xlower (.toLowerCase x) ylower (.toLowerCase y)]
(and
(= (sort xlower) (sort ylower))
(not= xlower ylower))))

(defn anagrams-for [word possible-anagrams]
(filter #(anagram? word %) possible-anagrams))``````

I think it would be better to use Clojure's built-in clojure.string/lower-case function instead of the Java method. Instead of using an anonymous function for the predicate, you might want to consider using partial function application instead: (filter (partial anagram? word) possible-anagrams). This is also suggested by the community style guide

alexspurling
Solution Author
commented over 4 years ago

Thanks for your comments. I'll take a look at the clojure native functions in the future rather than default to the Java methods. Also I was vaguely aware of partial. I will look out for possible places to use that as well.

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