childElementCount 예제
<button onclick="homzzanag()">클릭</button>
<div id="hz">
<p>홈짱닷컴</p>
<p>Homzzang.com</p>
</div>
<p id="demo"></p>
<script>
function homzzanag() {
var c = document.getElementById("hz").childElementCount;
document.getElementById("demo").innerHTML = c; // 2
}
</script>
결과보기