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Start your free trialSahan Balasuriya
10,115 PointsIt only asks one question
it only seems to ask the first question and nothing else happens
var questions = [
['whats 1+1', 2],
['whats 2+2', 4],
['whats 1+2', 3]
];
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) {
questions = questions[i][0];
answer = questions[i][1];
response = parseInt(prompt(questions));
if (response === answer) {
correctAnswers += 1;
}
}
html = "you got" + correctAnswers + "questions right";
print(html);
2 Answers
malkio kusanagi
12,336 PointsYou must separate the looping of user input prompt.
var questions = [
['whats 1+1', 2],
['whats 2+2', 4],
['whats 1+2', 3]
];
var correctAnswers = 0;
var question;
var answer;
var response;
var html;
function print(message) {
document.write(message);
}
function ask( response ){
for (var i = 0; i < questions.length; i += 1) {
questions = questions[i][0];
answer = questions[i][1];
if (response === answer) {
correctAnswers += 1;
return true;
}
else return false;
}
}
do{
response = parseInt(prompt(questions));
if( ask(response) ){
html = "you got" + correctAnswers + "questions right";
print(html);
}
}while( true != false);
Mod Note - Changed from comment to answer so it may be voted on or marked as best answer.
Iain Simmons
Treehouse Moderator 32,305 PointsHi Sahan Balasuriya, you issue is that instead of using the singular question
variable within the loop, you're actually changing the value of the questions
(plural) array to equal the first question when you first loop, and then because the length becomes 1, it doesn't loop anymore.
Just change to the following and it should work (note the references to the array still need to be questions
):
for (var i = 0; i < questions.length; i += 1) {
question = questions[i][0];
answer = questions[i][1];
response = parseInt(prompt(question));
if (response === answer) {
correctAnswers += 1;
}
}