Javascript SyntaxError:意外令牌节点js教程
所以我在做这个教程,当我尝试启动服务器时,我得到了这个错误Javascript SyntaxError:意外令牌节点js教程,javascript,node.js,Javascript,Node.js,所以我在做这个教程,当我尝试启动服务器时,我得到了这个错误 /server.js:84 .put(function(req, res) { ^ SyntaxError: Unexpected token . at exports.runInThisContext (vm.js:73:16) at Module._compile (module.js:443:25) at Object.Module._extensions..js (module.js:478:10)
/server.js:84
.put(function(req, res) {
^
SyntaxError: Unexpected token .
at exports.runInThisContext (vm.js:73:16)
at Module._compile (module.js:443:25)
at Object.Module._extensions..js (module.js:478:10)
at Module.load (module.js:355:32)
at Function.Module._load (module.js:310:12)
at Function.Module.runMain (module.js:501:10)
at startup (node.js:129:16)
at node.js:814:3
这就是我的代码的样子
// server.js
var router = express.Router(); // get an instance of the express Router
// middleware to use for all requests
router.use(function(req, res, next){
// do logging
console.log('For every request this message is being shown.');
next(); // make sure we go to the next routes and don't stop here
});
// test route to make sure everything is working
router.get('/', function(req, res){
res.json({ message: 'Whatsup Welcome to my first node api!'});
});
// more routes for our API will continue here
// on routes that end in /Bears
router.route('/bears')
// create a bear (accessed at POST http://localhost:8080/bears)
.post(function(req, res) {
var bear = new Bear(); // create a new instance of the Bear model
bear.name = req.body.name; // set the bears name (comes from the request)
bear.save(function(err) {
if (err)
res.send(err);
res.json({ message: 'Bear has been born!' });
});
})
// get all the bears (accessed at GET http://localhost:8080/api/bears)
.get(function(req, res) {
Bear.find(function(err, bears) {
if (err)
res.send(err);
res.json(bears);
});
});
// on routes that end in /bears/:bear_id
// ------------------------------------------------
router.route('/bears/:bear_id')
// get all the bears (accessed at GET http://localhost:8080/api/bears/:bear_id)
"line :84 ->>>" .get(function(req, res) {
Bear.find(function(err, bears) {
if (err)
res.send(err);
res.json(bears);
});
});
// update the bear with this id (accessed at PUT http://localhost:8080/api/bears/:bear_id)
.put(function(req, res) {
// use our bear model to find the bear we want
Bear.findById(req.params.bear_id, function(err, bear) {
if (err)
res.send(err);
bear.name = req.body.name; // update the bears info
// save the bear
bear.save(function(err) {
if (err)
res.send(err); }
res.json({ message: 'Bear updated!' });
});
});
});
// REGISTER OUR ROUTES here
// all of our routes will be prefixed with /api
app.use('/api', router);
// START THE server
app.listen(port);
console.log('Magic is happening on port:' + port);
标记为84的行不是错误所在的位置。在该块之后调用的下一个函数中:
// on routes that end in /bears/:bear_id
// ------------------------------------------------
router.route('/bears/:bear_id')
// get all the bears (accessed at GET http://localhost:8080/api/bears/:bear_id)
"line :84 ->>>" .get(function(req, res) {
Bear.find(function(err, bears) {
if (err)
res.send(err);
res.json(bears);
});
});
您刚刚用分号完成了这个get()
调用,但随后继续调用预期对象上的下一个函数:
// update the bear with this id (accessed at PUT http://localhost:8080/api/bears/:bear_id)
.put(function(req, res) {
// use our bear model to find the bear we want
Bear.findById(req.params.bear_id, function(err, bear) {
if (err)
res.send(err);
bear.name = req.body.name; // update the bears info
// save the bear
bear.save(function(err) {
if (err)
res.send(err); }
res.json({ message: 'Bear updated!' });
});
});
});
如果您删除
.put(function(req,res){
行前面的分号,它应该不会有语法错误。另外,我猜行:84->>“
字符串也不应该在那里。它将尝试调用字符串上的.get()
,这很可能不起作用(但直到运行时它才知道)。你说得对,GregL-我假设OP只是把它放在那里,以便在源代码中标记行号所在的位置。@Arond我刚刚签出了它,是的,非常感谢这是一个修复。无论你用什么方法编辑代码,都应该支持某种内置的“linting”(验证语法)这将为你突出这些容易犯的错误。你甚至可以使用免费的在线工具,例如,等等,将你的JS放入“整理”中,使其具有一致的格式和可读性,并为你突出显示任何错误。这里显示了右下角的一个小错误图标,你可以单击该图标查看有问题的行。