Function vs. Events

gistfile1.js

//
// functional
//
http.request(url, function(req, res) {
    var html = '';
    res.on('data', function(chunk) {
        html += chunk;
    });

    res.on('end', function() {
        var elements = html.match(/findMe/g);
        _.each(elements, function(element) {
            // keep going 
        });
    });
});

//
// event emitter
//
var emit = new EventEmitter();
emit.on('scrape', function(url, nextStep) {
    http.request(url, function(req, res) {
        var html = '';
        res.on('data', function(chunk) {
            html += chunk;
        });

        res.on('end', function() {
            emit.emit(nextStep, html);
        });
    });
});

emit.on('nextStep', function(html) {
    var elements = html.match(/findMe/g);
    _.each(elements, fnction(element) {
        // keep going
    });
});​