Scrape Dilbert strips from http://dilbert.com/ for given duration

dilbert-strip-scrapper.js

var request = require("request"),
    cheerio = require("cheerio"),
    fs = require('fs');

var site = "http://dilbert.com";
var startingPage = "/strip/2005-01-01";
var finalPage = '/strip/2006-01-01';

var nextPage = startingPage;

function downloadFileInFolder(fromUrl, fileName) {
    request(fromUrl).pipe(fs.createWriteStream(fileName));
    console.log('Saved image ' + fileName);
}

var scrapeStrip = function (error, response, body) {
    console.log('Now at ' + site + nextPage);
    if (!error) {
        var $ = cheerio.load(body);
        var stripImageUrl = $(".img-comic").attr('src');
        console.log("Found strip at " + stripImageUrl);

        downloadFileInFolder(stripImageUrl, nextPage.substr(1) + '.jpg');

        nextPage = $('.nav-right>a').attr('href');
        console.log('Next page is ' + nextPage);

        if (nextPage != finalPage) {
            request(site + nextPage, null, scrapeStrip);
        }
    } else {
        console.log("We’ve encountered an error: " + error);
    }
};

request(site + nextPage, null, scrapeStrip);