just a page rank perf

index.js

// run:
// echo {} > package.json
// npm i byline ngraph.graph ngraph.pagerank
var byline = require('byline');
var fs = require('fs');
var g = require('ngraph.graph')();
var pagerank = require('ngraph.pagerank');

var stream = byline.createStream(fs.createReadStream('web-Google.txt', { encoding: 'utf8' }));

stream.on('data', function(line) {
  if (line[0] === '#') return;
  var parts = line.split('\t');
  g.addLink(parts[0], parts[1]);
});
stream.on('end', function () {
  console.log("computing rank");
  var start = +new Date();
  var rank = pagerank(g, 0.80, 1e-10);
  console.log("Done in " + (+new Date() - start) + 'ms');
  console.log('rank for 99: ' + rank['99']);
});