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# freddie2025's solution

## to Scrabble Score in the JavaScript Track

Published at Apr 04 2020 · 0 comments
Instructions
Test suite
Solution

Given a word, compute the scrabble score for that word.

## Letter Values

You'll need these:

``````Letter                           Value
A, E, I, O, U, L, N, R, S, T       1
D, G                               2
B, C, M, P                         3
F, H, V, W, Y                      4
K                                  5
J, X                               8
Q, Z                               10
``````

## Examples

"cabbage" should be scored as worth 14 points:

• 3 points for C
• 1 point for A, twice
• 3 points for B, twice
• 2 points for G
• 1 point for E

And to total:

• `3 + 2*1 + 2*3 + 2 + 1`
• = `3 + 2 + 6 + 3`
• = `5 + 9`
• = 14

## Extensions

• You can play a double or a triple letter.
• You can play a double or a triple word.

## Setup

Go through the setup instructions for Javascript to install the necessary dependencies:

https://exercism.io/tracks/javascript/installation

## Requirements

Install assignment dependencies:

``````\$ npm install
``````

## Making the test suite pass

Execute the tests with:

``````\$ npm test
``````

In the test suites all tests but the first have been skipped.

Once you get a test passing, you can enable the next one by changing `xtest` to `test`.

## 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.

### scrabble-score.spec.js

``````import { score } from './scrabble-score';

describe('Scrabble', () => {
test('lowercase letter', () => {
expect(score('a')).toEqual(1);
});

xtest('uppercase letter', () => {
expect(score('A')).toEqual(1);
});

xtest('valuable letter', () => {
expect(score('f')).toEqual(4);
});

xtest('short word', () => {
expect(score('at')).toEqual(2);
});

xtest('short, valuable word', () => {
expect(score('zoo')).toEqual(12);
});

xtest('medium word', () => {
expect(score('street')).toEqual(6);
});

xtest('medium, valuable word', () => {
expect(score('quirky')).toEqual(22);
});

xtest('long, mixed-case word', () => {
expect(score('OxyphenButazone')).toEqual(41);
});

xtest('english-like word', () => {
expect(score('pinata')).toEqual(8);
});

xtest('empty input', () => {
expect(score('')).toEqual(0);
});

xtest('entire alphabet available', () => {
expect(score('abcdefghijklmnopqrstuvwxyz')).toEqual(87);
});
});``````
``````//
// This is only a SKELETON file for the 'Scrabble Score' exercise. It's been provided as a
// convenience to get you started writing code faster.
//

const letters = new Map([
['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 score = (word) => {
let count = 0;

word.split('').map(letter => count += letters.get(letter.toLowerCase()));

return count;
};``````