3.3.ts

/* 
Para una palabra dada, calculamos su puntuación en Scrabble® 
*/

function computeScore(word: string): number {
    const letters: string[] = word.toUpperCase().split('');
    return letters.reduce((accum, curr) => accum += getPointsFor(curr), 0);
}

function getPointsFor(letter: string): number {
    const lettersAndPoints: [string, number][] = [
        ['AEOIULNRST', 1],
        ['DG', 2],
        ['BCMP', 3],
        ['FHVWY', 4],
        ['K', 5],
        ['JX', 8],
        ['QZ', 10],
    ];

    return lettersAndPoints.reduce((computedScore: number, pointsTuple: [string, number]) => {        
        const [letters, score]: [string, number] = pointsTuple;
        if (letters.split('').find((ll) => ll === letter)) {
            return computedScore += score;
        }        
        return computedScore;
    }, 0);
}

console.log('[Ejercicio 3.3]', `zoologico vale ${computeScore('zoologico')} puntos.`);

/*
1 Añadir anotaciones de tipo siempre que sea posible
*/