Full Deletable Word Finder

findwords.js

const fs = require('fs');
const wordListPath = require('word-list');

const wordArray = fs.readFileSync(wordListPath, 'utf8').split('\n');
const wordSet = new Set(wordArray);

function findFullyDeletableWords(words) {
    const fullyDeletableWords = new Set();

    words.forEach(word => {

        console.log('Checking: ' + word);

        let isFullyDeletable = true;
        for (let i = 0; i < word.length; i++) {
            let newWord = word.slice(0, i) + word.slice(i + 1);

            //console.log('\tTrying: ' + newWord);

            if (!words.has(newWord)) {
                isFullyDeletable = false;
                break; // The word is not fully deletable
            }
        }
        if (isFullyDeletable) {
            fullyDeletableWords.add(word);
        }
    });

    return Array.from(fullyDeletableWords);
}

const fullyDeletableWords = findFullyDeletableWords(wordSet);
console.log("Fully deletable words found:", JSON.stringify(fullyDeletableWords, null, 2));