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

options = {
    pretty: true
};

// Render an HTML fragment from a file written in Jade.
var htmlFrag = jade.renderFile('myFrag.jade', options, function(err, html) {
        if (err) {
           throw(err);
        }
        return html;
    });

// Write HTML fragment to a file.
fs.writeFile('myFrag.html', htmlFrag, function(err) {
    if (err) {
        throw(err);
    }
});