NodeJS中的JavaScript类和模块

我很难理解如何将单独的.js文件导入到index.js节点文件中

我创建了一个文件pokemon.js，如下所示：

var pokemon = (function(){

  function Pokemon(name) {

    this.name = name; 
    console.log("pokemon");
  }

})();

module.exports.Pokemon = pokemon; 

现在在我的index.js中，我想使用它：

var Pokemon = require('./models/pokemon.js');

//如何调用口袋妖怪函数

更新：

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

var pokemons = [];

app.get("/pokemon/all",function(req,res){

  var pokemon = Pokemon("Pikachu"); // Pokemon is not a function



})

以下是我找到的解决方案：

models.js：

module.exports = function(name) {
  this.name = name; 
}

index.js: 

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

var pokemons = [];

app.get("/pokemon/all",function(req,res){

  var pokemon = new Pokemon('Pikachu');
  pokemons.push(pokemon);
  res.json(pokemons);

})

---

@catta提供的代码只是有一个小错误，请尝试：

var pokemon = function(name) {
this.name = name; 
console.log("pokemon");
}
module.exports.Pokemon = pokemon; 

在index.js中

var Pokemon = require('./models.js'); 
Pokemon.Pokemon('name') //output name

---

我知道您想要导出对象构造函数

---

pokemon.js

function Pokemon(name){
   this.name = name;
   console.log(this.name);
}
// if any prototype
Pokemon.prototype.serviceOne = function(){ };
Pokemon.prototype.serviceTwo = function(){ };


module.exports = Pokemon;

index.js

var Pokemon = require('path/to/pokemon'); 
app.get("/pokemon/all",function(req,res){

    var pikachu= new Pokemon("Pikachu"); 
    pikachu.serviceOne();
    pikachu.serviceTwo();

})

var pokemon = function(str){
    this.name = str; 
    console.log(this.name);
};
module.exports.Pokemon = pokemon;

var Pokemon = require('./models/models.js');
var app = express();
var pokemons = [];
app.get("/pokemon/all",function(req,res){
  pokemons.push(Pokemon.Pokemon("Pikachu"));
})

---

pokemon.js

var Pokemon = require('path/to/pokemon'); 
app.get("/pokemon/all",function(req,res){

    var pikachu= new Pokemon("Pikachu"); 
    pikachu.serviceOne();
    pikachu.serviceTwo();

})

var pokemon = function(str){
    this.name = str; 
    console.log(this.name);
};
module.exports.Pokemon = pokemon;

var Pokemon = require('./models/models.js');
var app = express();
var pokemons = [];
app.get("/pokemon/all",function(req,res){
  pokemons.push(Pokemon.Pokemon("Pikachu"));
})

main.js

var Pokemon = require('path/to/pokemon'); 
app.get("/pokemon/all",function(req,res){

    var pikachu= new Pokemon("Pikachu"); 
    pikachu.serviceOne();
    pikachu.serviceTwo();

})

var pokemon = function(str){
    this.name = str; 
    console.log(this.name);
};
module.exports.Pokemon = pokemon;

var Pokemon = require('./models/models.js');
var app = express();
var pokemons = [];
app.get("/pokemon/all",function(req,res){
  pokemons.push(Pokemon.Pokemon("Pikachu"));
})

---

当您将var key设置为require时，它只引用该文件。因此，您需要“Pokemon.Pokemon（）”

您的iLife不会返回任何内容，因此

Pokemon

是

未定义的
。删除iLife部分并使
Pokemon=function Pokemon…
。您能将其作为一个答案来编写，以便我有更好的想法吗？如果pokemon有方法或函数怎么办。@johndoe你应该用解决方案回答你自己的问题。仍然没有定义。最后一行：pokemon.pokemon（“name”）；它不是口袋妖怪（“名字”）；或者粘贴当前代码只是在我的笔记本电脑@john doe
b07/apps/test/over$more models.js var pokemon=function（name）{this.name=name；console.log（“pokemon”）；}module.exports.pokemon=pokemon；douxsey@douxsey-CR70-2M-CX70-2OC-CX70-2OD:/mnt/9aa1c3fe-f4e9-4867-afef-8ab2db92eb07/apps/test/over$more index.js var Pokemon=require（'./models.js'）；Pokemon.Pokemon（'name'）//输出名称douxsey@douxsey-CR70-2M-CX70-2OC-CX70-2OD:/mnt/9aa1c3fe-f4e9-4867-afef-8ab2db92eb07/apps/test/over$node index.js口袋妖怪
也是很好的解决方案。我也得到了同样的结果。口袋妖怪没有定义。同样使用上述方法，如何将函数添加到Pokemon类（function）。@johndoe export-as-constructor。编辑，非常感谢！如果我正在使用上述技术，如何将原型函数添加到Pokemon对象中。您可以：
Pokemon.Prototype.f=function（）{}