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false }
You might like to add some extra questions to the questions array as well, as it will
make the game more interesting to have more than three options!
Because we're no longer working through the questions one at a time, instead of using i
to track which question we are asking, we'll use a variable called question to store the
current question object. This means that we need to replace the following line:
var i = 0;
with this line that declares the question variable:
var question; // current question
This line only declares the question variable; it is set in the chooseQuestion()
function that we'll update next:
function chooseQuestion() {
console.log("chooseQuestion() called");
var questions = quiz.questions.filter(function(question){
return question.asked === false;
// set the current question
question = questions[random(questions.length) - 1];
Here we're using the filter() array method to return another array containing only the
questions that have a value of false for their asked property, so they are yet to be asked.
The random() function is then used to select a random number between 1 and the length
of this array. We then subtract 1 from this value and use it as the index to select the ques-
tion to ask by assigning it to the question variable. This is then passed to the ask()
function as an argument.
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