如何创建交换具有不同ids的div的函数？

<div id="div1">Div 1</div>
<div id="div2">Div 2</div>

function swapDivs(id1, id2) {
  var div1 = document.getElementById(id1);
  var div2 = document.getElementById(id2);
  
  var temp = div1.innerHTML;
  div1.innerHTML = div2.innerHTML;
  div2.innerHTML = temp;
}

swapDivs("div1", "div2");