hey I have a quiz I made with JavaScript and I have an array for questions I want to randomly show questions from the array but I don't want the questions to repeat themselves so I created another array for used questions and every question that is asked is in the array. and I tried to check if the new question is in the array before it gets printed but it doesn't work how can I randomly show questions from the array without repeating them?
function randomize() {
let random = Math.floor(Math.random() * questions.length);
return random;
}
let usedQuestions = [10];
submit.addEventListener("click", function(){
if(questionNumber == questions.length - 1){
question.style.display = "none";
answer.style.display = "none";
submit.style.display = "none";
card.style.display = "block";
score.innerText = "Your score is " + points + "/" + questions.length * 10;
//stop the function from running
return;
}
let userAnswer = document.getElementById("answer").value;
if(userAnswer == answers[questionNumber]){
points +=10;
console.log("correct");
}
else{
console.log("incorrect" + " " + "the correct answer is " + answers[questionNumber]);
//if(points == 10){
//points = 0;
//}
}
//in the else I check if the user have more than 10 points and if so I decrement the points by 10 but id no then I set the points to 0
questionNumber++;
answer.value = "";
counter++;
usedQuestions[questionNumber] = questions[randomize()];
function check(){
for (let i = 0; i < usedQuestions.length; i++) {
if(usedQuestions[i] == randomize()){
randomize();
check();
}
}
}
check();
//question.innerText = questions[questionNumber];
question.innerText = questions[randomize()];
});