Demo https://youtu.be/s4Pewotttm8

10fastfingers.js

(() => {

  const words = [...document.querySelector('#words').firstChild.children].map(child => child.innerText);
  const input = document.querySelector('#inputfield');
  
  words.forEach(word => {
    input.value = word;
    input.dispatchEvent(new KeyboardEvent('keyup', { keyCode: 32, which: 32 }));
  });
  
})()