Quiz Challenge

      /*
Quiz Challenge. I will ask a series of five questions and then provide a rank based on their score.
*/
var score = 0;
// Answer variables will be stated as a1, a2, etc. Correct guesses add to the score where as incorrect guesses will add nothing.
var a1= prompt('What city has the largest population?');
if (a1.toUpperCase() === 'TOYKO'){
 score += 1;
} else {
 score += 0;
}
var a2 = prompt('What are the indents on a golf ball called?');
if (a2.toUpperCase() === 'DIMPLES'){
 score+= 1;
} else {
 score += 0;
}
var a3 = prompt('What is the only English word that ends with "mt"?');
if (a3.toUpperCase() === 'DREAMT'){
 score += 1;
} else {
 score += 0;
}
var a4= prompt('What is the largest planet in our solar system?');
if (a4.toUpperCase() === 'JUPITER'){
 score += 1;
} else {
 score += 0;
}
var a5= prompt("What is Rambo's first name?");
if (a5.toUpperCase() = 'JOHN'){
 score += 1;
} else {
 score += 0;
} 
// alert to tell them how many they got right.
document.write('You got ' + score + 'out of 5 correct!');
// Now they will receive a crown rank based on their score
if (score === 5) {
 alert('You received a Gold Crown!');
} else if (score >= 3) {
 alert('You received a Silver Crown!');
} else if (score >= 1) {
 alert('You received a Bronze Crown!');
} else {
 alert('You did not score enough to get a crown. Better luck next time.');
}