Measure text size in JavaScript
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by kayahr
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Published on 2010-05-18T11:17:21Z
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2010/05/18
11:20 UTC
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I want to measure the size of a text in JavaScript. So far this isn't so difficult because I can simply put a temporary invisible div into the DOM tree and check the offsetWidth and offsetHeight. The problem is, I want to do this BEFORE the DOM is ready. Here is a stub:
<html>
<head>
<script type="text/javascript">
var text = "Hello world";
var fontFamily = "Arial";
var fontSize = 12;
var size = measureText(text, fontSize, fontFamily);
function measureText(text, fontSize, fontFamily)
{
// TODO Implement me!
}
</script>
</head>
<body>
</body>
</html>
Again: I KNOW how to do it asynchronously when DOM (or body) signals that it is ready. But I want to do it synchronously right in the header as shown in the stub above. Any ideas how I can accomplish this? My current opinion is that this is impossible but maybe someone has a crazy idea.
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