将 3 个数字的数组转换为关联的字母

问：

我正在学习 JS，并为自己设定了一个挑战，即从一系列比赛结果中重新创建足球联赛表。

一切都进展得非常顺利，我几乎完成了，但我无法将我的“FORM GUIDE”数组过滤到它们对应的字母。

我只将过去 5 场比赛的得分输出为数组（如下）;

[3, 1, 3, 0, 3]

但我想将其输出为 3 = W、1 = D、0 = L。

所以。。。 西、中、西、左、西

有人可以解释一下我该怎么做吗？

谢谢

'use strict';

// Tottenham's Premier League scores & points 21-22 //
//--------------------------------------------------//

const scoresPoints = [
    [1, 0, 3], // Watford
    [1, 1, 1], // Southampton
    [3, 0, 3], // Crystal Palace
    [2, 2, 1], // Liverpool
    [3, 0, 3], // Norwich
    [2, 0, 3], // Brentford
    [2, 1, 3], // Leeds
    [0, 0, 1], // Everton
    [3, 2, 3], // Newcastle
    [0, 3, 0], // Man U
    [0, 1, 0], // West Ham
    [2, 1, 3], // Villa
    [1, 3, 0], // Arsenal
    [0, 3, 0], // Chelsea
    [0, 3, 0], // Crystal Palace
    [1, 0, 3], // Watford
    [1, 0, 3], // Wolves
    [1, 0, 3], // Man City
];

// Define The functions & arrays--------------------//
//--------------------------------------------------//

let tottenhamScores;
let totalTottenhamGoals;
let totalTottenhamPoints;
let totalOpponentsGoals;
let tottenhamForm = [];
// The goals scored by Tottenham
const tottenhamGoals = [];
// The points scored by Tottenham
const tottenhamPoints = [];
// The goals scored by the opponents
const opponentsGoals = [];

// Filter the data from each array------------------//
//--------------------------------------------------//

for (let i = 0; i < scoresPoints.length; i++) {
    tottenhamScores = scoresPoints[i][0];
    // Just Tottenham's goals
    tottenhamGoals.push(tottenhamScores);
    // Just Tottenham's points
    const leaguePoints = scoresPoints[i][2];
    tottenhamPoints.push(leaguePoints);
    // Just the opponents goals
    const opponentsScores = scoresPoints[i][1];
    opponentsGoals.push(opponentsScores);
    // Just Tottenham's Form
    const leagueForm = scoresPoints[i][2];
    tottenhamForm.push(leagueForm);
}

// Adding up the arrays-----------------------------//
//--------------------------------------------------//

// Adding up Tottenham's goals
for (let i = 0; i < tottenhamGoals.length; i++) {
    totalTottenhamGoals = tottenhamGoals.reduce(function (a, b) {
        return a + b;
    }, 0);
}
// Adding up Tottenham's points
for (let i = 0; i < tottenhamPoints.length; i++) {
    totalTottenhamPoints = tottenhamPoints.reduce(function (a, b) {
        return a + b;
    }, 0);
}
// Adding up the opponents goals
for (let i = 0; i < opponentsGoals.length; i++) {
    totalOpponentsGoals = opponentsGoals.reduce(function (a, b) {
        return a + b;
    }, 0);
}

// Last 5 games-------------------------------------//
//--------------------------------------------------//

// Find the individual values
function occurrence(pointValues, value) {
    return pointValues.filter(v => v === value).length;
}
const win = occurrence(tottenhamPoints, 3);
const draw = occurrence(tottenhamPoints, 1);
const loss = occurrence(tottenhamPoints, 0);

// Filter to last five games
function lastFiveGames(form, five) {
    form = tottenhamForm.slice(0, five);
    return form;
}
const latestForm = lastFiveGames(tottenhamForm, 5);

// Convert points to represented letters
const letteredResult = latestForm.map(result => {
    switch (result) {
        case 0:
            return 'L';
        case 1:
            return 'D';
        case 3:
            return 'W';
        default:
            return 'No Form To Display';
    }
});

// Print the statement & table----------------------//
//--------------------------------------------------//

console.log(
    `SUMMARY
-------- 
-------- 
Throughout the 2021-22 Premier League season, Tottenham Hotspur have scorred ${totalTottenhamGoals} goals and conceeded ${totalOpponentsGoals}.
    
This has gained Tottenham Hotspur ${totalTottenhamPoints} points to date.

(Dropping ${
        scoresPoints.length * 3 - totalTottenhamPoints
    } points throughout the season from the maximum of ${
        scoresPoints.length * 3
    } available).
   
    TABLE & FORM GUIDE ---
    ----------------------
    ${scoresPoints.length} Played
    ${win} Wins
    ${draw} Draws
    ${loss} Losses
    ${totalTottenhamGoals} For
    ${totalOpponentsGoals} Against
    ${totalTottenhamGoals - totalOpponentsGoals} Goal Difference
    ${totalTottenhamPoints} POINTS IN TOTAL
    
    FORM (Last 5 Games) ${letteredResult}
    ----------------------
    ----------------------`
);