javascript select option 값 가져오기

html

<select onchange="onChangeSelect(this)" id="selectBox">
  <option>1</option>
  <option>2</option>
  <option>3</option>
  <option>4</option>
  <option>5</option>
</select>

 

javascript

const onChangeSelect = (_selectBox) => {
  const selectBox = document.querySelector("#selectBox");
  
  // selectBox 혹은 _selectBox로 셀렉트박스에 접근합니다.
  const currentOption = selectBox.options[selectBox.selectedIndex];
  console.log(currentOption);
}