lib/main.js
function () {
            let dir = path.join(container_directory, content_dir);
            return fs.readdirSync(dir).filter(function(file) {
                try {
                    return fs.statSync(file).isDirectory();
                } catch (err) {
                    console.log(err);
                    return false;
                }
            });
        }
function () {
            let dir = path.join(container_directory, content_dir);
            return fs.readdirSync(dir).filter(function(file) {
                try {
                    return fs.statSync(file).isDirectory();
                } catch (err) {
                    console.log(err);
                    return false;
                }
            });
        }
Returns an array of chapters in this resource container