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

Juan Francisco Andrade Álvarez
Juan Francisco Andrade Álvarez
23,997 Points
Posted by Juan Francisco Andrade Álvarez
Juan Francisco Andrade Álvarez
23,997 Points

Pushing a token into the tokens array

Is it possible to change the way of adding a token to the array of tokens like this?:

createTokens(number) {
    let tokens = [];
    for (let i = 0; i < number; i++) {
      let token = new Token(i, this);
      tokens[i] = token;
    }
    return tokens;
  }

1 Answer

Steven Parker
Steven Parker
231,271 Points
Steven Parker
Steven Parker
231,271 Points

Sure, that does exactly the same thing as the course example. The difference in using "push" is that it always adds to the end so you don't need to keep track of the index.

Also, you can still use "const" since "tokens" is never re-assigned, only indexed.

Juan Francisco Andrade Álvarez
Juan Francisco Andrade Álvarez
23,997 Points
Juan Francisco Andrade Álvarez
Juan Francisco Andrade Álvarez
23,997 Points

But in this example the indexes don't need to be tracked, do they?

Steven Parker
Steven Parker
231,271 Points
Steven Parker
Steven Parker
231,271 Points

No, they don't. That's why "push" is a good choice in this situation.