Beat Letroca

beatletroca.js

var dict         = process.argv[2],
    inputLetters = process.argv[3],
    words        = require('fs')
                    .readFileSync(dict, {encoding: 'utf8'})
                    .toLowerCase()
                    .replace(/\/.+/g, '')
                    .split(/\r\n/);



String.prototype.isWriteableWith = function (letters) {

    if (this.length === 0) {
        return true;
    }

    if (letters.indexOf(this[0]) === -1) {
        return false;
    }

    return this
            .slice(1)
            .isWriteableWith(letters.replace(this[0], ''));
};


void function () {

    require('fs').writeFileSync('debug-dict.txt', words);

    words
        .filter(function (word) {
            return word.isWriteableWith(inputLetters) && word.length > 2;
        })
        .sort(function (one, other) {
            return other.length - one.length;
        })
        .forEach(function (writeableWord) {
            process.stdout.write(writeableWord + '\n');
        });

}();