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jQuery TextArea Auto Height
$('textarea.notes').on('focus blur keyup', function() {
var paddingTop = $(this).css('padding-top').replace('px', ''),
paddingBottom = $(this).css('padding-bottom').replace('px', '');
$(this).css('height', '1px');
$(this).css('height', (this.scrollHeight - paddingTop - paddingBottom) + 'px');
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