How to use JQuery selectors in Node.js

Question

I\'m trying to extract email info from HTML files in my hard drive.

If I load the file in firefox and run jQuerify bookmarklet I can use successfully the following selec

Answer 1

Using Cheerio

Cheerio is a server implementation of core jQuery that is perfect for using selectors.

You can easily use the each function:

$('a.iEmail').each(function (i, elem) {
  console.log($(this).attr('href'));
});

Full example:

var fs = require('fs');
var cheerio = require('cheerio');

fs.readFile('file_1.html', 'utf-8', function (err, data) {
  if (err) {
    throw err;
  }

  var $ = cheerio.load(data);

  $('a.iEmail').each(function (i, elem) {
    console.log($(this).attr('href'));
  });
});