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

Posted by Sherial JAwed
Sherial JAwed
Courses Plus Student 15,355 Points

Don't quite understand the createTokens method.

In our Token.js file, we created a constructor that looks like this:

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

In the createTokens method in Player.js, there's a for loop that looks like this:

        for(let i = 0; i < num; i++) {
            let token = new Token(i, this);
            tokens.push(token);
        }

How are we able to pass arguments when creating a new Token in the for loop when we've not specified any parameters in the constructor of class Token? We're passing it the index of the loop as well as 'this' but I don't see how that's possible?

Thank you!

1 Answer

Steven Parker
Steven Parker
229,657 Points
Steven Parker
Steven Parker
229,657 Points

There's a Course Correction in the Teacher's Notes section of the previous video.

The corrected code for the constructor method has this change:

    constructor(index, owner) {
Sherial JAwed
Sherial JAwed
Courses Plus Student 15,355 Points

Oh oops. That's what I get for trying to fly through everything quickly. Thank you Steven.