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JavaScript JavaScript Loops, Arrays and Objects Tracking Multiple Items with Arrays Build a Quiz Challenge, Part 2

Joram Livengood
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Joram Livengood
Full Stack JavaScript Techdegree Student 14,603 Points

New print function is not working with my code

I wrote all of the code during the challenge for the first video, and I got everything to work.

However, I started watching this video and I changed my print function from the document.write method to this innerHtml method, and now it's not printing MOST of my code!

Can anyone see why this might be happening? (note: this code is sloppy)

var questionsList = [ ["What is 2 + 2?", "4"], ["What color is Darci?", "black"], ["What color is Penny?", "brown"] ] var correctScore = 0; var wrongScore = 0; var askQuestion;

function print(message) { var outputDiv = document.getElementById("output"); outputDiv.innerHTML = message; }

function printScore() { var correctHeadline = "<p>You got ";

var correctList = "<h2>You got these questions correct:</h2> <ol>"; var wrongList = "<h2>You got these questions wrong:</h2> <ol>";

for (i = 0; i < questionsList.length; i++) { askQuestion = prompt(questionsList[i][0]); askQuestion = askQuestion.toLowerCase(); if (askQuestion === questionsList[i][1]) { correctScore += 1; correctList += "<li>" + questionsList[i][0] + "</li>"; } else { wrongScore += 1; wrongList += "<li>" + questionsList[i][0] + "</li>"; } }

if (correctScore === 0) { correctHeadline = "<p>You should try again.</p>"; correctList = ""; } else { correctHeadline += correctScore + " of the questions right!</p>"; correctList += "</ol>"; }

if (wrongScore === 0) { correctHeadline = "<p>YOU GOT ALL THE QUESTIONS RIGHT!</P>"; wrongList = ""; } else { wrongList += "</ol>"; }

print(correctHeadline); print(correctList); print(wrongList); }

printScore();

1 Answer

Steven Parker
Steven Parker
231,269 Points

The assignment in your "print" function replaces the contents of the "outputDiv" each time you call it.

If you want to accumulate instead of replace, use the addition assignment operator instead:

  outputDiv.innerHTML += message;