<html>
<head>
<title>remove blank lines using javascript</title>
</head>
<body style="background:lightgray">
<p>Click the button to test:</p>
<button onclick="test()">remove blank lines</button>
</br>
<textarea id="edit" style="height:200px;width:240px">
line 1
line 2
line 3
</textarea>
<script>
function test() {
var edit= document.getElementById("edit");
edit.value=removeBlankLines(edit.value);
}
function removeBlankLines(text) {
return text.replace(/^\s*[\r\n]/gm,"");
}
</script>
</body>
</html>
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