Human Benchmark Number Test GreaseMonkey Script

script.js

// ==UserScript==
// @name     HumanBenchmark number
// @version  1
// @grant    none
// @match    https://humanbenchmark.com/tests/number-memory
// ==/UserScript==

const getParentDiv = () => {
  const $parentDivs = document.getElementsByClassName('number-memory-test');
  if ($parentDivs.length === 0) {
    console.log("No parent divs found.");
    return null;
  }
  return $parentDivs[0];
};

const waitForElement = (parent, className, tagName, timeout = 25000) => {  // Increased to 15 seconds
  return new Promise((resolve, reject) => {
    let elapsed = 0;
    const interval = 100;
    
    const poll = () => {
      let element = null
      if(className) {
     	 element = parent.getElementsByClassName(className)[0];
      } else {
        element = parent.getElementsByTagName(tagName)[0];
      }
      if (element) {
        resolve(element);
        return;
      }
      elapsed += interval;
      if (elapsed >= timeout) {
        reject(new Error("Timed out waiting for element"));
        return;
      }
      setTimeout(poll, interval);
    };
    
    poll();
  });
};

const executeNTimes = async (n) => {
    let $parentDiv = getParentDiv();
    if (!$parentDiv) return;
  
    const $buttons = $parentDiv.getElementsByTagName('button');
    const $startButton = $buttons[0];
    $startButton.click();

  	for (let i = 0; i < n; i++) {
      $parentDiv = getParentDiv();

      const $dataElement = await waitForElement($parentDiv, 'big-number', null);
      const number = $dataElement.outerText;

      // Wait for the form
      const $form = await waitForElement($parentDiv, null, 'form');
      const $input = $form.getElementsByTagName('input')[0];
      const $submit = $form.getElementsByTagName('button')[0];

      // Set the value and simulate user input event
      $input.value = number;
      const event = new Event('input', {
        'bubbles': true,
        'cancelable': true
      });
      $input.dispatchEvent(event);

      $submit.click();

      const $showAnswer = await waitForElement($parentDiv, 'showanswer', null);
      const $nextButton = $showAnswer.getElementsByTagName('button')[0];
      $nextButton.click();

      // Optional: Wait a little bit before starting the next cycle
      await new Promise(r => setTimeout(r, 2000));
  }
};

executeNTimes(100);  // Runs the sequence 100 times, it won't reach as much because of the time limit set in the waitForElement