What is the most effective method for determining the width and height of each character within a span element?
For example, if the HTML code looks like this:
<span style="font-size:12px">Test 100</span>
One approach is to create a dummy span for each individual character with the same style as the original span, append it to the DOM, and then retrieve its height and width.
Here's an example using jQuery:
var x = $('<span style="font-size:12px">' + 'T' + '</span>');
$('body').append(x);
var h = x.height(), w = x.width();
x.remove();
However, this process can be inefficient. Are there any alternative techniques that can be used?