wordle_starting_wordpairs_values.js

import { promises as fs } from 'fs';

Array.prototype.countBy = function () {
    return this.reduce((acc, item) => {
        acc[item] = acc[item] || 0;
        acc[item] += 1
        return acc;
    }, {})
}
Array.prototype.sum = function () { return this.reduce((s,v) => s + v); }
Array.prototype.cache = function (callback) {
    return this.reduce((acc,item) => {
        acc[item] = callback(item);
        return acc;
    }, {});
}


let rawData = (await fs.readFile('./words.txt', 'utf8')).split('\n');

const charFrequencies = rawData.flatMap(w => w.split("")).countBy();
const positionFrequencies = Array(5).fill(0).map((_, pos) => {
    return rawData.map(w => w[pos]).countBy();
});


let values = rawData.cache(w => w.split('').map((c,i) => charFrequencies[c] + 4 * positionFrequencies[i][c]).sum());


const duplicateLetters = (w1,w2) => 10 - [...new Set((w1+w2).split(''))].length;

rawData.forEach(w1 => rawData.forEach(w2 => {
    console.log(values[w1] + values[w2] - duplicateLetters(w1,w2) * 10000, w1, w2);
}));