Searches HN February "Who's Hiring" listings for jobs located in San Francisco and Mountain View using phantom.js.

hnfeb.js

var page = require('webpage').create();

// Listener to display console msgs from within page.evaluate()
page.onConsoleMessage = function(msg) {
  console.log(msg);
};

// Open HN 
page.open('https://news.ycombinator.com/item?id=7162197', function(status) {
  if (status === 'success') {

    // Get all the <span.comment>s, search for desired string, and return array
    var result = page.evaluate(function() {
      var comments = document.getElementsByClassName('comment');
      var matches = [];

      for (var i = 0; i < comments.length; i++) {
        var text = (comments[i] && comments[i].hasOwnProperty('textContent'))? comments[i].textContent : '';

        // Regex is here
        if (/San Fran|Bay Area|San Jose|California|Mountain View/i.exec(text) != null) {
          matches.push({'text': text});
        }
      }
      return matches;
    }); 

    result.forEach(function(item) {
      console.log(item.text + "\n----------------------------\n");
    });
  }
  phantom.exit();
});