CodePen Embed - uncheck checkbox2

<input type="checkbox" id="checkbox1" checked />
<input type="checkbox" id="checkbox2" checked />
<input type="checkbox" id="checkbox3" checked />
<button onclick="resetAllCheckboxes()">모두 초기화</button>

function resetAllCheckboxes() {
  const checkboxes = document.querySelectorAll("input[type='checkbox']");
  checkboxes.forEach(checkbox => {
    checkbox.checked = true; // 또는 false
  });
}

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