How can I get the "Israel" answer to work whether the user types it in caps, none caps, or just one letter of caps?

And how would you put it in this code? when I apply it to prompt, it applies it to all 3 answers in the loop, which suddenly gives me 0 correct answers.

Kinda hard to tell you without supplying the code :P. However you cold simply do it like this:

var userInput = prompt("Input an answer").toLowerCase()

This code will convert whatever was inputted to all lowercase. And if you input non string it will do nothing. If you now set the "Israel" to just "israel" it will be the correct answer no matter how you inputted it eg:

var country = "israel"
var test = prompt("input something").toLowerCase()
if (country == test) {
alert("Yes the answer was correct..")
} else {
alert("No the answer was incorrect")
}

So regardless of wether they input IsRaEl or Israel or ISRAEL, it will be converted to israel, and then tested!

Hope that helps, if you need more help though, please show me the updated code!

This is the code

var questions = [
  ["What year is it?", "2018"],
  ["Where is Tel Aviv?", "Israel"],
  ["How many days in a week?", "7"]
];


var correctAnswers = 0;
var question;
var answer;
var response;
var html;

for (var i = 0; i < questions.length; i +=1) {
  question = questions[i][0];
  answer = questions[i][1];
  response = prompt(question);

  if (response === answer) {
    correctAnswers += 1;
  }
}

html = "You got " + correctAnswers + " questions correct";
document.write(html); 

Yes now simply add the .toLowerCase() function to the prompt and change "Israel" to "israel". Code:

var questions = [
  ["What year is it?", "2018"],
  ["Where is Tel Aviv?", "israel"],
  ["How many days in a week?", "7"]
];


var correctAnswers = 0;
var question;
var answer;
var response;
var html;

for (var i = 0; i < questions.length; i +=1) {
  question = questions[i][0];
  answer = questions[i][1];
  response = prompt(question).toLowerCase();

  if (response === answer) {
    correctAnswers += 1;
  }
}

html = "You got " + correctAnswers + " questions correct";
document.write(html); 

Thank you! I get it now !

Glad to help!