print code in js stackoverflow

function print(data, event) {
                event.preventDefault();
                printElement(document.getElementById("grid"));
            };

function printElement (elem) {
                var domClone = elem.cloneNode(true);
                var $printSection = document.getElementById("grid");
                if (!$printSection) {
                    var $printSection = document.createElement("div");
                    $printSection.id = "grid";
                    document.body.appendChild($printSection);
                } else {
                    $printSection.innerHTML = "";
                    $printSection.appendChild(domClone);
                }

                var is_chrome = navigator.userAgent.toLowerCase().indexOf('chrome') > -1;
                if (is_chrome == true) {
                    window.print();
                    if (window.stop) {
                        location.reload(); //triggering unload (e.g. reloading the page) makes the print dialog appear
                        window.stop(); //immediately stop reloading
                    }
                } else {
                    window.print();
                }
                return false;
            };
   <div class="modal-body">
                <div class="" id="mydata">
                    <div id="grid">Some Data</div>
                </div>
            </div>

<button type="button" id="outageSummary_printBtn" class="btnPrint" data-dismiss="modal" onclick="print()>Print</button>