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JavaScript

Posted by Dennis Le
Dennis Le
12,872 Points

String and parseInt

The instructor asked to create three questions by using an array and show the user the number correct. I was able to complete the challenge; however, mixing the question with numbers and strings. I was unable to do. I use parseInt to store my answers to the questions I asked. But when I had an answers with a string it did not count as correct.

Mike West
Mike West
9,163 Points

Can you post your code?

3 Answers

Jessie Gibson
PLUS
Jessie Gibson
Courses Plus Student 9,494 Points
Jessie Gibson
Jessie Gibson
Courses Plus Student 9,494 Points

If you can post your code that would be helpful.

Dennis Le
Dennis Le
12,872 Points
Dennis Le
Dennis Le
12,872 Points 
var questions = [
  ['How many states are in the United States?', "50"],
  ['How many continents are there?', "7"],
  ['How many legs does an insect have?', "6"],
  ['What is the capital of California=?', "sacramento"]
];
var correctAnswers = 0;
var question;
var answer;
var response;
var html;

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

for (var i = 0; i < questions.length; i += 1) {
  question = questions[i][0];
  answer = questions[i][1];
  response = prompt(question);

  if (response.toLowerCase() === answer) {
    correctAnswers += 1;
  } 
}

html = "You got " + correctAnswers + " question(s) right."
print(html)
Dennis Le
Dennis Le
12,872 Points

@Jessie Gibson...here you go. Not sure is this the best way to do this. I have mix questions with that contain numbers and strings as answers. I made all my answers to a strings.

Mike West
Mike West
9,163 Points
Mike West
Mike West
9,163 Points

Have you tried making all of your answers strings? Not just strings that contain numbers? The reason I ask this is because your if statement contains the .toLowerCase() method. I don't think you can lowercase a number. When I went through this challenge I found that it worked using either all numbers or all strings (containing words). Try those out and let me know

Dennis Le
Dennis Le
12,872 Points

Thanks Mike for getting back to me. I will definitely look at this more.

Mike West
Mike West
9,163 Points

No problem. Let me know how it goes