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JavaScript JavaScript Loops, Arrays and Objects Tracking Multiple Items with Arrays Build a Quiz Challenge, Part 1 Solution

Norma Ikeda
Norma Ikeda
1,242 Points
Posted by Norma Ikeda
Norma Ikeda
1,242 Points

Why does its necessary to define the value 0, for var correctAnswer works?

I don't get why its not necessary to give a value to all the variables, except for correctAnswer. 

var correctAnswer = 0;
var question;
var answer;
var response;
var html;

Thank you very much for your help! ^^

Edit: Made the javascript more readable. - Dane E. Parchment Jr. (Moderator)

1 Answer

Dane Parchment
MOD
Dane Parchment
Treehouse Moderator 11,075 Points
Dane Parchment
Dane Parchment
Treehouse Moderator 11,075 Points

The reason the correctAnswers variable is initiated with a 0 is because he has to increment the number in a loop, so he starts the variable off at 0 for easier incrementing.

Norma Ikeda
Norma Ikeda
1,242 Points
Norma Ikeda
Norma Ikeda
1,242 Points

Dear Dane, thank you very much for your help!