code: function processJs(jsFiles) {
        var mergedJs = mergeFiles(jsFiles).join(' ');
        var script = replaceDemoModuleWithCodepenModule(mergedJs);
        return script;
      }
docs: Applies modifications the javascript prior to sending to codepen. Currently merges js files and replaces the module with the Codepen module.  See documentation for replaceDemoModuleWithCodepenModule.