Node.js導出路由器和功能

Question

我在文件的末尾導出路由器並導出一個函數，但我只能讓它們中的一個一次工作。

// weather.js
var express = require('express');
var router = express.Router();

refreshWeather(){
// Refresh weather...
}

exports = router; // It's either this
exports.refresh = function() { // or this.
    refreshWeather();
    console.log('Done refreshing');
};

從我的主app.js我希望能夠做到這兩點：

//app.js
var express = require('express');
var app = express();

var weather = require('./routes/weather.js');

app.use(weather) // I want to be able to use this for routing
weather.refresh(); // But also be able to call refresh function of weather.js

Answer 1

有什么理由你不能這樣做嗎？ 這似乎比在exports中定義函數並嘗試在weather.js中調用另一個函數更簡潔。

module.exports = { 
  router:router,
  refreshWeather:refreshWeather
}

然后在app.js

var weather = require('./routes/weather.js');
app.use(weather.router)
weather.refreshWeather()

如果您不想這樣做，請嘗試將exports = router更改為exports.router = router。 然后在app.js中你可以調用weather.router。