<button id="print-btn">Print</button>

let ajaxDone = false; $(function () { $.ajax({ type: "get", url: "/evaluation/silver/userinfo", dataType: 'json', success: function (data) { const parsed = typeof data === "string" ? JSON.parse(data) : data; // update DOM $("#user_name").text(parsed.name); // other updates... ajaxDone = true; } }); $('#print-btn').on('click', function () { if (!ajaxDone) { alert("Please wait, loading data..."); } else { setTimeout(() => window.print(), 200); } }); });