Find all words in a given list with three consecutive pairs of letters

gistfile1.js

// Derped original regex: /(aa|bb|cc|dd|ee|ff|gg|hh|ii|jj|kk|ll|mm|nn|oo|pp|qq|rr|ss|tt|uu|vv|ww|xx|yy|zz){3}/
// New regex provided by @ryan_richt

var fs = require('fs'),
    lazy = require('lazy'), // https://github.com/pkrumins/node-lazy
    re = new RegExp(/(([a-z])\2){3}/),
    word;

new lazy(fs.createReadStream(process.argv[2] || '/usr/share/dict/words'))
    .lines
    .forEach(function (line) {
        word = line.toString('ascii').toLowerCase();
        if (re.test(word)) console.log(word);
    });