Simplify objects concept (#2679)

[no important files changed]

Author: SleeplessByte

exercises/concept/high-score-board/.docs/hints.md

@@ -28,11 +28,6 @@
 - Use a `for...in` loop to go through all keys in the object.
 - For each key, set the new value as you did in task 4.
 
-## 6. Normalize a high score
-
-- You can access the normalization function like you would access any other key in the object.
-- Then, you can call that function using round brackets and pass in the score as an argument.
-
 [mdn-delete]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/delete
 [mdn-shorthand-assignment]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Addition_assignment
 [mdn-for-in]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements/for...in

exercises/concept/high-score-board/.docs/instructions.md

@@ -87,26 +87,3 @@ const scoreBoard = {
 applyMondayBonus(scoreBoard);
 // => { 'Dave Thomas': 144, 'Freyja Ćirić': 639, 'José Valim': 365 }
 ```
-
-## 6. Normalize a high score
-
-Different arcade halls award different score points.
-To celebrate the best arcade player in town, a player's score needs to be normalized so scores from different arcade halls become comparable.
-
-Write a function `normalizeScore`.
-To practice your object skills, instead of two parameters this function should accept one object as a parameter.
-That object contains a key `score` with the value being a player's score (a number).
-There is also a second key `normalizeFunction` that has a function as its value.
-This function takes a score as an argument and returns the corrected score.
-
-Your function `normalizeScore` should return the normalized score that you get after applying the normalization function to the score that was passed in.
-
-```javascript
-function normalize(score) {
-  return 2 * score + 10;
-}
-
-const params = { score: 400, normalizeFunction: normalize };
-normalizeScore(params);
-// => 810
-```

exercises/concept/high-score-board/.meta/exemplar.js

@@ -63,13 +63,3 @@ export function applyMondayBonus(scoreBoard) {
 
   return scoreBoard;
 }
-
-/**
- * Normalizes a score with the provided normalization function.
- *
- * @param {Params} params the parameters for performing the normalization
- * @returns {number} normalized score
- */
-export function normalizeScore(params) {
-  return params.normalizeFunction(params.score);
-}

exercises/concept/high-score-board/high-score-board.spec.js

@@ -3,7 +3,6 @@ import {
   addPlayer,
   applyMondayBonus,
   createScoreBoard,
-  normalizeScore,
   removePlayer,
   updateScore,
 } from './high-score-board';
@@ -130,27 +129,3 @@ describe('applyMondayBonus', () => {
     expect(Object.is(actual, scoreBoard)).toBe(true);
   });
 });
-
-describe('normalizeScore', () => {
-  test('applies the normalization function', () => {
-    const params = {
-      score: 45,
-      normalizeFunction: function (score) {
-        return score * 3 - 10;
-      },
-    };
-
-    expect(normalizeScore(params)).toEqual(125);
-  });
-
-  test('works for different params', () => {
-    const params = {
-      score: 2100,
-      normalizeFunction: function (score) {
-        return score / 2 + 100;
-      },
-    };
-
-    expect(normalizeScore(params)).toEqual(1150);
-  });
-});