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

sasipim Suksareewattanakul
sasipim Suksareewattanakul
5,417 Points
Posted by sasipim Suksareewattanakul
sasipim Suksareewattanakul
5,417 Points

I only get 0 print out as my score. please help! 

var quiz = [
 ["Who is the president?" , "Trump"], 
 ["What is the most popular pet?" , "Dog"],
 ["What is our planet?" , "Earth"] 
];

var score = 0;

function print(message) {
  document.write(message);
}

for (var i = 0; i < quiz.length; i += 1) {
  var score = 0;
  var answer = prompt(quiz[i][0]).toLowerCase(); 
  if (answer === quiz[i][1]) {
    score += 1;
  }
}

document.write(score);

2 Answers

Elijah Quesada
.a{fill-rule:evenodd;}techdegree seal-36
Elijah Quesada
Front End Web Development Techdegree Graduate 32,965 Points

What worked for me is changing the answers to lower case and adding .toLowerCase() method to the answer variable. I believe it was the .toLowerCase() at the end of prompt that was causing the issue.

var quiz = [
 ["Who is the president?" , "trump"], 
 ["What is the most popular pet?" , "dog"],
 ["What is our planet?" , "earth"] 
];

var score = 0;


for (var i = 0; i < quiz.length; i++) {

  var answer = prompt(quiz[i][0]);
  answer = answer.toLowerCase();
  if (answer === quiz[i][1]) {
    score += 1;
  }
}

console.log(score);
Otto linden
Otto linden
5,857 Points
Otto linden
Otto linden
5,857 Points

Here is another way tho code it! 

var quiz = [
 ["Who is the president?" , "trump"], 
 ["What is the most popular pet?" , "dog"],
 ["What is our planet?" , "earth"] 
];

var score = 0;


for (var i = 0; i < quiz.length; i++) {
  var answer = prompt(quiz[i][0]);
  if (answer.toLowerCase() === quiz[i][1]) {
    score += 1;
  }
}

alert(score);