'; resultContent.innerHTML = html; resultMeta.textContent = val + ' × ' + UNITS[from].to_ms + ' / ' + UNITS[to].to_ms + ' = ' + result; resultArea.classList.add('show'); }); document.getElementById('btn-clear').addEventListener('click', function() { document.getElementById('val').value = 100; fromSel.value = 'km_h'; toSel.value = 'm_s'; clearError(); clearResult(); }); })();