Listen for textarea changes to textarea and limit length according to maxlength attribute

textarea.maxlength.js

$(document).on('keyup input paste', 'textarea[maxlength]', function() {      
    var limit = parseInt($(this).attr('maxlength'));  
    var text = $(this).val();  
    var chars = text.length;  
  
    if (chars > limit) {  
        var new_text = text.substr(0, limit);   
        $(this).val(new_text);  
    }      
});