我刚刚启动了Socket.IO,但我无法让它正常运行。她是代码
app.js
var app = require('express')();
var http = require('http').Server(app);
app.get('/', function(req, res){
res.sendFile('index.html');
});
http.listen(3000, function(){
console.log("Listening On Port *: 3000");
});
的index.html
<!DOCTYPE html>
<html>
<head>
<title>Hello World</title>
</head>
<body>
Hello World
</body>
</html>
当我尝试使用node或nodemon运行它时,两者都已安装并且我已全局安装了socket.io(v1.7.3)它显示
TypeError: require(...) is not a function
at Object.<anonymous> (I:\Bilal\Aptech\Tutorials Point Practice\Socket.IO\Chapter 1 - Hello World\app.js:1:91)
at Module._compile (module.js:571:32)
at Object.Module._extensions..js (module.js:580:10)
at Module.load (module.js:488:32)
at tryModuleLoad (module.js:447:12)
at Function.Module._load (module.js:439:3)
at Module.runMain (module.js:605:10)
at run (bootstrap_node.js:423:7)
at startup (bootstrap_node.js:147:9)
at bootstrap_node.js:538:3
[nodemon] app crashed - waiting for file changes before starting...
答案 0 :(得分:0)
您可能没有快速安装,如果未安装必需('express')则返回null,这不是函数
修复运行
npm install express
答案 1 :(得分:0)
我认为这是因为您尝试在最后使用()
作为函数调用require。试试这个:
var app = require('express');
否则,试试这个:
var express = require('express');
var app = express();