nodejsのHTML解析ツールnode-jqueryの使い方を簡単に分析

var $ = require('jquery');
String.format = function() {
  var s = arguments[0];
  for (var i = 0; i < arguments.length - 1; i++) {
    var reg = new RegExp("\\{" + i + "\\}", "gm");
    s = s.replace(reg, arguments[i + 1]);
  }
  return s;
};
 $.get("https://github.com/popular/forked",function(html){
    var $doc = $(html);
  console.log("No. name language star  forks ")
    $doc.find("ul.repolist li.source").each(function(i,project){
    var $project = $(project);
        var name = $project.find("h3").text().trim();
        var language = $project.find("li:eq(0)").text().trim();
        var star = $project.find("li.stargazers").text().trim();
        var forks = $project.find("li.forks").text().trim();
        var row =String.format("{4} {0} {1} {2} {3}",name,
            language,star,forks,i + 1 );
        console.log(row);
    });
 });