Otters - Jodi Denney

src/adagrams.js

@@ -1,15 +1,123 @@
+// import { LETTER_POOL } from "../test/adagrams.test";
+const LETTER_POOL = {
+  A: 9,
+  B: 2,
+  C: 2,
+  D: 4,
+  E: 12,
+  F: 2,
+  G: 3,
+  H: 2,
+  I: 9,
+  J: 1,
+  K: 1,
+  L: 4,
+  M: 2,
+  N: 6,
+  O: 8,
+  P: 2,
+  Q: 1,
+  R: 6,
+  S: 4,
+  T: 6,
+  U: 4,
+  V: 2,
+  W: 2,
+  X: 1,
+  Y: 2,
+  Z: 1,
+};
+
+const LETTER_SCORE = {
+  A: 1,
+  B: 3,
+  C: 3,
+  D: 2,
+  E: 1,
+  F: 4,
+  G: 2,
+  H: 4,
+  I: 1,
+  J: 8,
+  K: 5,
+  L: 1,
+  M: 3,
+  N: 1,
+  O: 1,
+  P: 3,
+  Q: 10,
+  R: 1,
+  S: 1,
+  T: 1,
+  U: 1,
+  V: 4,
+  W: 4,
+  X: 8,
+  Y: 4,
+  Z: 10,
+};
+
 export const drawLetters = () => {
-  // Implement this method for wave 1
+  const hand = [];
+  const letterBank = [];
+  // Build a letterBank array where each letters appearance is accurately weighted
+  for (const [key, count] of Object.entries(LETTER_POOL)) {
+    const start = letterBank.length;
+    letterBank.length += count;
+    letterBank.fill(key, start, letterBank.length);
+  }
+  // Build a hand of ten random strings from the letterBank removing selected letter fom letterBank
+  for (let i = 0; i < 10; i++) {
+    let temp = Math.floor(Math.random() * letterBank.length);
+    hand.push(letterBank[temp]);
+    letterBank.splice(temp, 1);
+  }
+  return hand;
 };
 
 export const usesAvailableLetters = (input, lettersInHand) => {
-  // Implement this method for wave 2
+  input = input.toUpperCase();
+  let handCopy = [...lettersInHand];
+  for (let i = 0; i < input.length; i++) {
+    if (!handCopy.includes(input[i])) {
+      return false;
+    }
+    let index = handCopy.indexOf(input[i]);
+    handCopy.splice(index, 1);
+  }
+  return true;
 };
 
 export const scoreWord = (word) => {
-  // Implement this method for wave 3
+  word = word.toUpperCase();
+  let score = 0;
+  for (let i = 0; i < word.length; i++) {
+    score += LETTER_SCORE[word[i]];
+  }
+  if (word.length > 6) {
+    score += 8;
+  }
+  return score;
 };
 
 export const highestScoreFrom = (words) => {
-  // Implement this method for wave 1
+  const highestWord = {
+    score: 0,
+    word: "",
+  };
+  for (let i = 0; i < words.length; i++) {
+    if (scoreWord(words[i]) > highestWord.score) {
+      highestWord.score = scoreWord(words[i]);
+      highestWord.word = words[i];
+    } else if (scoreWord(words[i]) === highestWord.score) {
+      if (highestWord.word.length === 10) {
+        continue;
+      } else if (words[i].length === 10) {
+        highestWord.word = words[i];
+      } else if (highestWord.word.length > words[i].length) {
+        highestWord.word = words[i];
+      }
+    }
+  }
+  return highestWord;
 };

test/adagrams.test.js

@@ -120,7 +120,9 @@ describe("Adagrams", () => {
     });
 
     it("returns a score of 0 if given an empty input", () => {
-      throw "Complete test";
+      expectScores({
+        "": 0,
+      });
     });
 
     it("adds an extra 8 points if word is 7 or more characters long", () => {
@@ -133,7 +135,7 @@ describe("Adagrams", () => {
     });
   });
 
-  describe.skip("highestScoreFrom", () => {
+  describe("highestScoreFrom", () => {
     it("returns a hash that contains the word and score of best word in an array", () => {
       const words = ["X", "XX", "XXX", "XXXX"];
       const correct = { word: "XXXX", score: scoreWord("XXXX") };
@@ -145,7 +147,7 @@ describe("Adagrams", () => {
       const words = ["XXX", "XXXX", "X", "XX"];
       const correct = { word: "XXXX", score: scoreWord("XXXX") };
 
-      throw "Complete test by adding an assertion";
+      expect(highestScoreFrom(words)).toEqual(correct);
     });
 
     describe("in case of tied score", () => {