text: function solve() {
     document.querySelector('#searchBtn').addEventListener('click', onClick);
  
     function onClick() {
        let searched = document.getElementById('searchField').value;
  
        document.getElementById('searchField').value = '';
        Array.from(document.querySelector('tbody').children).map(x => {
           if (x.classList.contains('select')) {
              x.classList.remove('select');
           }
        });
  
        Array.from(document.querySelector('tbody').children).map(x => {
           if (x.innerHTML.includes(searched)) {
              x.classList.add('select');
           }
        });
     }
  }
  