How to call a function inside a function in Javascript

Question

Considering the following code:

```javascript
function MyObject(){
  this.one = function(){
    return 1;
  };
  function two(){
    return 2;
  };
}

MyObject.prototype.three= 3;
MyObject.four= 4;

var obj = new MyObject();
try{ console.log(obj.one()); } catch(e){}
try{ console.log(obj.two()); } catch(e){}
try{ console.log(obj.three); } catch(e){}
try{ console.log(obj.four); } catch(e){}
```

Accepted Answer

It displays `1`

Accepted Answer

It displays `3`

Answer

It displays `2`

Answer

It displays `4`

Question from the Javascript test

How to call a function inside a function in Javascript