Javascript 节点：所需文件上的名称冲突

谢谢你的阅读

问题

如何避免名称冲突？这是我的问题吗？这是正确的说法吗

详细信息

var deviceA = require('./apple.js');
var apple1 = new deviceA({
  ipAddress: "192.168.1.97",
  port: 23
})
apple1.connect();
apple1.on('connect', function(data) {
  console.log('Apple: Device Connected @' + apple1.ipAddress);
})
apple1.on('disconnect', function(data) {
  console.log('Apple: Device Disconnected');
})

var deviceA = require('./banana.js');
var banana1 = new deviceA({
  ipAddress: "192.168.1.97",
  port: 23
})
banana1.connect();
banana1.on('connect', function(data) {
  console.log('Banana: Device Connected @' + banana1.ipAddress);
})
banana1.on('disconnect', function(data) {
  console.log('Banana: Device Disconnected');
})

var events = require('events');

var Apple = function(opts) {
  this.ipAddress = opts.ipAddress;
  this.port = opts.port;
};

Apple.prototype = new events.EventEmitter;
module.exports = Apple;

Apple.prototype.connect = function() {
  self = this;
  // telnet to apple
  var net = require('net');
  self.connection = net.createConnection(self.port, self.ipAddress);
  self.connection.setEncoding("UTF8");

  self.connection.on('connect', function(data) {
    self.emit('connect');
  });
  self.connection.on('disconncect', function(data) {
    self.emit('disconnect');
  });
}

var events = require('events');

var Banana = function(opts) {
  this.ipAddress = opts.ipAddress;
  this.port = opts.port;
};

Banana.prototype = new events.EventEmitter;
module.exports = Banana;

Banana.prototype.connect = function() {
  self = this;
  // telnet to banana
  var net = require('net');
  self.connection = net.createConnection(self.port, self.ipAddress);
  self.connection.setEncoding("UTF8");

  self.connection.on('connect', function(data) {
    self.emit('connect');
  });
  self.connection.on('disconncect', function(data) {
    self.emit('disconnect');
  });
}

我是node&javascript新手，我正在编写一个与不同类型的网络设备对话（tcp on 23）的应用程序

我决定为每个设备创建一个单独的js文件，并在我的

app.js

文件中要求它们

启动应用程序时，

apple1

连接，但只要

banana1

连接，我就会与

apple1

失去连接。我没有收到来自

apple1

的断开连接消息

我怀疑存在某种变量名冲突，因为当我最后更改apple连接的顺序时，香蕉就是我失去连接的那个。为了支持我的怀疑，在我的

banana.js

中，我分配

self=this，我把它改成了
somethingElse=this
。通过这样做，我能够同时连接到两个设备

app.js

var deviceA = require('./apple.js');
var apple1 = new deviceA({
  ipAddress: "192.168.1.97",
  port: 23
})
apple1.connect();
apple1.on('connect', function(data) {
  console.log('Apple: Device Connected @' + apple1.ipAddress);
})
apple1.on('disconnect', function(data) {
  console.log('Apple: Device Disconnected');
})

var deviceA = require('./banana.js');
var banana1 = new deviceA({
  ipAddress: "192.168.1.97",
  port: 23
})
banana1.connect();
banana1.on('connect', function(data) {
  console.log('Banana: Device Connected @' + banana1.ipAddress);
})
banana1.on('disconnect', function(data) {
  console.log('Banana: Device Disconnected');
})

var events = require('events');

var Apple = function(opts) {
  this.ipAddress = opts.ipAddress;
  this.port = opts.port;
};

Apple.prototype = new events.EventEmitter;
module.exports = Apple;

Apple.prototype.connect = function() {
  self = this;
  // telnet to apple
  var net = require('net');
  self.connection = net.createConnection(self.port, self.ipAddress);
  self.connection.setEncoding("UTF8");

  self.connection.on('connect', function(data) {
    self.emit('connect');
  });
  self.connection.on('disconncect', function(data) {
    self.emit('disconnect');
  });
}

var events = require('events');

var Banana = function(opts) {
  this.ipAddress = opts.ipAddress;
  this.port = opts.port;
};

Banana.prototype = new events.EventEmitter;
module.exports = Banana;

Banana.prototype.connect = function() {
  self = this;
  // telnet to banana
  var net = require('net');
  self.connection = net.createConnection(self.port, self.ipAddress);
  self.connection.setEncoding("UTF8");

  self.connection.on('connect', function(data) {
    self.emit('connect');
  });
  self.connection.on('disconncect', function(data) {
    self.emit('disconnect');
  });
}

apple.js

var deviceA = require('./apple.js');
var apple1 = new deviceA({
  ipAddress: "192.168.1.97",
  port: 23
})
apple1.connect();
apple1.on('connect', function(data) {
  console.log('Apple: Device Connected @' + apple1.ipAddress);
})
apple1.on('disconnect', function(data) {
  console.log('Apple: Device Disconnected');
})

var deviceA = require('./banana.js');
var banana1 = new deviceA({
  ipAddress: "192.168.1.97",
  port: 23
})
banana1.connect();
banana1.on('connect', function(data) {
  console.log('Banana: Device Connected @' + banana1.ipAddress);
})
banana1.on('disconnect', function(data) {
  console.log('Banana: Device Disconnected');
})

var events = require('events');

var Apple = function(opts) {
  this.ipAddress = opts.ipAddress;
  this.port = opts.port;
};

Apple.prototype = new events.EventEmitter;
module.exports = Apple;

Apple.prototype.connect = function() {
  self = this;
  // telnet to apple
  var net = require('net');
  self.connection = net.createConnection(self.port, self.ipAddress);
  self.connection.setEncoding("UTF8");

  self.connection.on('connect', function(data) {
    self.emit('connect');
  });
  self.connection.on('disconncect', function(data) {
    self.emit('disconnect');
  });
}

var events = require('events');

var Banana = function(opts) {
  this.ipAddress = opts.ipAddress;
  this.port = opts.port;
};

Banana.prototype = new events.EventEmitter;
module.exports = Banana;

Banana.prototype.connect = function() {
  self = this;
  // telnet to banana
  var net = require('net');
  self.connection = net.createConnection(self.port, self.ipAddress);
  self.connection.setEncoding("UTF8");

  self.connection.on('connect', function(data) {
    self.emit('connect');
  });
  self.connection.on('disconncect', function(data) {
    self.emit('disconnect');
  });
}

banana.js

var deviceA = require('./apple.js');
var apple1 = new deviceA({
  ipAddress: "192.168.1.97",
  port: 23
})
apple1.connect();
apple1.on('connect', function(data) {
  console.log('Apple: Device Connected @' + apple1.ipAddress);
})
apple1.on('disconnect', function(data) {
  console.log('Apple: Device Disconnected');
})

var deviceA = require('./banana.js');
var banana1 = new deviceA({
  ipAddress: "192.168.1.97",
  port: 23
})
banana1.connect();
banana1.on('connect', function(data) {
  console.log('Banana: Device Connected @' + banana1.ipAddress);
})
banana1.on('disconnect', function(data) {
  console.log('Banana: Device Disconnected');
})

var events = require('events');

var Apple = function(opts) {
  this.ipAddress = opts.ipAddress;
  this.port = opts.port;
};

Apple.prototype = new events.EventEmitter;
module.exports = Apple;

Apple.prototype.connect = function() {
  self = this;
  // telnet to apple
  var net = require('net');
  self.connection = net.createConnection(self.port, self.ipAddress);
  self.connection.setEncoding("UTF8");

  self.connection.on('connect', function(data) {
    self.emit('connect');
  });
  self.connection.on('disconncect', function(data) {
    self.emit('disconnect');
  });
}

var events = require('events');

var Banana = function(opts) {
  this.ipAddress = opts.ipAddress;
  this.port = opts.port;
};

Banana.prototype = new events.EventEmitter;
module.exports = Banana;

Banana.prototype.connect = function() {
  self = this;
  // telnet to banana
  var net = require('net');
  self.connection = net.createConnection(self.port, self.ipAddress);
  self.connection.setEncoding("UTF8");

  self.connection.on('connect', function(data) {
    self.emit('connect');
  });
  self.connection.on('disconncect', function(data) {
    self.emit('disconnect');
  });
}

如何避免名称冲突

不要使用变量

这是我的问题吗

对。是你造成的，你需要修复它

这是正确的说法吗

对!

如何修复它

不要重命名冲突变量，但是

如何预防

用于所有文件，分配给未声明的全局变量时会出现异常。
所需文件通过文件路径获取。（除非它们在节点_模块中可用）因此，不会发生此类冲突。我可以看到的另一件事是，您正在为这两个设备复制代码。您可以在javascript中创建一个设备类并从中创建两个实例。是的，您缺少
self
的
var
声明。使用严格模式！！！！调查显示。。。第一答案！