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

Marie Josée Laporte
Marie Josée Laporte
8,188 Points
Posted by Marie Josée Laporte
Marie Josée Laporte
8,188 Points

the questions doesn't show.

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] ]; var correctAnswers = 0; var question; var answer; var response; var correct = []; var wrong = [];

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

function buildList(arr){ var listHTML = '<ol>'; for ( var i = 0; i < arr.lenght; i += 1 ){ listHTML += '<li>' + arr[i] + '</li>'; } listHTML += '</ol>'; return listHTML; }

for (var i = 0; i < questions.length; i += 1) { question = questions[i][0]; answer = questions[i][1]; response = prompt(question); response = parseInt(response); if (response === answer) { correctAnswers += 1; correct.push( question ); } else { wrong.push( question ); } }

html = 'You got ' + correctAnswers + ' question(s) right.' html += '<h2>You got these questions correct:</h2>'; html += buildList(correct); html += '<h2>You got these questions wrong:</h2>'; html += buildList(wrong); print(html);

everything seems to work but the questions doesn't show. all I have is this:

JavaScript Quiz

You got 0 question(s) right. You got these questions correct: You got these questions wrong:

what did I do wrong?

2 Answers

Steven Parker
Steven Parker
231,269 Points
Steven Parker
Steven Parker
231,269 Points

:point_right: You just have a typo.

In buildLlist() you wrote "lenght" instead of "length":

for ( var i = 0; i < arr.lenght; i += 1 )

In future, when posting code, be sure to follow the instructions shown in the Markdown Cheatsheet pop-up which can be found below the "Add an Answer" section. :arrow_heading_down: