Can someone help me figure out how to accurately determine the number of lines in a div? I tried using this example on jsfiddle, but it's giving me 9 instead of 5. Any suggestions on what might be causing this discrepancy?
var lines = document.getElementById('ptest').textContent;
alert(lines.split(/\r\n|\r|\n/).length);
Also, would like to use this code to count the number of lines in a paragraph. Any insights on how to achieve this?
Use the filter(String) method to eliminate empty arrays
var len=document.getElementById('ptest').textContent.split(/\n/).filter(function(a){ var b = a.replace(/ /g,''); return (typeof(b) == 'string' && b != '')}).length
alert(len)
If you have an extra new line character before opening or after closing the div tag, it may affect the output.
<div>
asd asda sdf
asd
sdsa sada</div>
in this case, you will get 5 output.
However,
<div>asd asda sdf
asd
sdsa sada</div>
will give you the correct output as 3
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