code: function stableNodeVersion () {
    // thanks to github.com/tj/n
    var versionRegex = /[0-9]+\.[0-9]*[02468]\.[0-9]+/;
  
    return got('https://nodejs.org/dist/')
      .then(function (res) {
        var response = res.body
          .split('\n')
          .filter(function (line) {
            return /\<\/a\>/.test(line);
          })
          .filter(function (line) {
            return versionRegex.test(line);
          })
          .map(function (line) {
            return versionRegex.exec(line)[0];
          });
  
        response.sort(function (a, b) {
          return semver.gt(a, b);
        });
  
        response.reverse();
  
        var version = response[0];
  
        return version;
      });
  }
docs: Fetch stable Node.js version