using the result to cheat.

cheat-using-result.js

/**
 * sample auto solve questions
 * code by @trhgquan - https://github.com/trhgquan
 */

function readCookie(name) {
    var nameEQ = name + "=";
    var ca = document.cookie.split(';');
    for (var i = 0; i < ca.length; i++) {
        var c = ca[i];
        while (c.charAt(0) === ' ') c = c.substring(1, c.length);
        if (c.indexOf(nameEQ) === 0) {
            return c.substring(nameEQ.length, c.length)
        }
    }
    return null;
}

// Read answer to a variable
var ans = readCookie("correctAnswers");

// Index of a question.
var i = 0;

var interval = setInterval(function() {
  // Get the element's text and print it to console.
  let element = document.getElementById("answer" + ans[i++]);
  console.log("Question " + i + ": " + element.innerText);
  
  // Use the built-in function to answer.
  answerQuestion(i, parseInt(ans[i - 1]));
  
  // Condition to stop answering.
  if (i === ans.length) {
    clearInterval(interval);
    console.log("Done");
  }
}, 1000);