Dynamically writing and evaluating a

Question

I want to dynamically write (and have evaluated) a script I write to a tag. Why won't this code work?

<html>
<head>

<script id="cojs">

</script>

<script type="text/javascript">
document.getElementById('cojs').innerHTML = 'alert("hey");';
</script>
</head>
<body>
</body>
</html>

Konstantin Weitz · Accepted Answer

Well script tags are evaluated when they are parsed. So since the section above is not parsed anymore after you alter it, it doesn't work.

If your usecase allows it try the eval function:

<html>
<head>
    <script type="text/javascript">
    eval('alert("hey");');
    </script>
</head>
<body>
</body>
</html>

Dynamically writing and evaluating a <script>

Tags:

javascript

html

bgcode

1 Answers

Konstantin Weitz

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