model_collection.js

function Model(name) {
  this.name = name;
}

function Collection(models) {
  this.models = models;
}
Collection.prototype.showName = function() {
  this.models.forEach(function(model) {
    console.log(model.name);
  });
}


var models = []
models.push(new Model("hoge1"));
models.push(new Model("hoge2"));
models.push(new Model("hoge3"));

var collection = new Collection(models);

collection.showName();
// hoge1
// hoge2
// hoge3