δ
IPAλ㤬ޤ
https://www.ipa.go.jp/files/000024729.pdf

<html>
<head
//ʸΤmetaεҤϾά
<title>ץڡ</title>
</head>
<body>
 <p id="p1">ΥڡϥץǤ</p>
<script type="text/javascript">
  setTimeout(function(){
  var p1_textnode = document.getElementById('p1').firstChild;
  p1_textnode.data = 'ΥڡϥץǤ';
  },5000 );
</script>
</body>
</html>

JavaScriptǤΤȰäƺ<body>β˽񤭤ޤ嵭Ǥ</body>ľ˽񤤤Ƥޤ
ץ˲
<script></script>ǰϤ

¾
//ϥ

¾­
➀ѿ
var a = 1

ؿ
function()

getElementById
嵭IPAλˤưʲʬ
document.getElementById('p1')
ΥɥȤid=p1Υǡ