Fooling typingtest.com and breaking records

typingtest_pwn.js

let time = 10; // Increase this if you're getting typing errors

function pressKey(key, code, eventType = 'keypress') {
  console.log(`Typing "${key}" (${code}) with event ${eventType}`);

  let event = new KeyboardEvent(eventType, {
    key: key,
    keyCode: code,
    which: code,
    charCode: code
  });

  let el = document.getElementById('test-edit-area');
  el.dispatchEvent(event);
}

let i = 0;
$('.test-text-area').children().each(function() {
  const word = $(this).text();

  word.split('').forEach((char, j) => {
    let charCode = char.charCodeAt(0);
    let key = char;

    if (char === '↩') {
      charCode = 13;
      key = 'Enter';
    }

    setTimeout(() => {
      pressKey(key, charCode, charCode === 13 ? 'keydown' : 'keypress'); // Return only works with keydown

      if (j === word.length-1) {
        // End of the word, type space
        setTimeout(() => {
          pressKey('Space', 32, 'keydown'); // Space only works with keydown
        }, time);
      }
    }, i*time*3);

    i++;
  });
});

Open a text test page on typingtest.com and run this script on the browser console (tested on Safari). This will read and simulate pressing each key.