未定义车把模板引擎

Handlebars Templating Engine Not Defined

我正在研究 Ethan Brown 的 Web Development with Node & Express: Leveraging the JavaScript Stack。我正在学习第三章,它介绍了有关 Express 的基本概念。正如书中所说,我创建了应用程序 meadowlark.js,但我收到有关 Handlebars 模板引擎的错误:

ReferenceError: handlebars is not defined at Object.<anonymous> (/PROJECT_STORAGE/site/meadowlark.js:7:26) at Module._compile (module.js:410:26) at Object.Module._extensions..js (module.js:417:10) at Module.load (module.js:344:32) at Function.Module._load (module.js:301:12) at Function.Module.runMain (module.js:442:10) at startup (node.js:136:18) at node.js:966:3

这是我如何设置 Handlebars 的代码以及 meadowlark.js 的其余部分:

var express = require('express');

var app = express();

// setup handlebars view engine
var handlbars = require('express-handlebars').create({ defaultLayout: 'main' });
app.engine('handlebars', handlebars.engine);
app.set('view engine', 'handlebars');
app.set('views', __dirname + '/views');

app.set('port', process.env.PORT || 3000);

app.get('/', function(req, res) {
 res.render('home');
});

app.get('/about', function(req, res) {
 res.type('about');
});

// custom 404 pg
app.use(function(req, res) {
 res.status(404);
 res.render('404');
});

// custom 500 pg
app.use(function(err, req, res, next) {
 //console.error(err.stack);
 res.status(500);
 res.render('500');
});

app.listen(app.get('port'), function() {
 console.log('Express started on localhost:' + app.get('port') + '; press Ctrl-C to terminate.');
});

如何修复我的代码以使 Handlebars 正确初始化并使 handlebars.js 运行?

打字错误var handlbars = require('express-handlebars').create({ defaultLayout: 'main' });

应该是var handlebars.

专业提示:在 ide.

中使用 linter