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JavaScript Object-Oriented JavaScript: Challenge Building Constructor Methods and Generating Objects createTokens() Method Solution

Posted by Kylie Soderblom
Kylie Soderblom
3,890 Points

Note: Corrected version of Token constructor see here. Question about When creating a new Token obj. (i, this),

First off there is a correction to the code: See Token.js, constructor and add params:

    constructor(index, owner) {

My question, when creating a new Token obj in Player.js

let token = new Token(i, this);

Why not be more specific and say (i, this.id) ?

Daoud Merchant
Daoud Merchant
5,135 Points

The reason the whole owner object has to be passed as a parameter is because the Token class constructor stores a reference to that whole object, not just the id:

class Token {
  constructor(index, owner) {
    this.owner = owner; // here
    this.id = `token-${index}-${owner.id}`; // access individual properties of 'owner' as needed
    this.dropped = false;
  }
};

If Token didn't store an owner parameter, indeed, you could write:

class Token {
  constructor(index, owner_id) {
    this.id = `token-${index}-${owner_id}`;
    this.dropped = false;
  }
};

And call it with new Token(i, this.id).

Hope this helps!