bd 7.0

public/js/ajax.js

@@ -0,0 +1,12 @@
+function ajaxRequest() {
+   const request = new XMLHttpRequest();
+   request.open("POST", "handler");
+   request.addEventListener("load", () => {
+      const responseText = request.responseText;
+      const targetElement = document.getElementById("buttonAdd");
+
+      targetElement.insertAdjacentHTML("beforebegin", responseText);
+
+   });
+   request.send();
+}