Can i use something else than "append" to show results in a js?

THIS IS THE JS //Back-End// var number = function(x) { for (var index = 1; index <= x; index += 1) { if (index % 5 === 0) { $(".pingpong").append("<li>" + "pong" + "</li>"); } else if (index % 3 === 0) { $(".pingpong").append("<li>" + "ping" + "</li>"); } else if (index % 15 === 0) { $(".pingpong").append("<li>" + "pingpong" + "</li>"); } else { $(".pingpong").append("<li>" + index + "</li>"); } } }; //Front-End// $(document).ready(function () { $("#blanks form").submit(function(event) { event.preventDefault(); var result = $("input#number").val(); number(result); $("#output").show(); }); });