diff --git a/javascript/Javascript Expert/chapter12/setIntervalSetTimeout.js b/javascript/Javascript Expert/chapter12/setIntervalSetTimeout.js
new file mode 100644
index 0000000..f6b45ca
--- /dev/null
+++ b/javascript/Javascript Expert/chapter12/setIntervalSetTimeout.js
@@ -0,0 +1,16 @@
+const ingredients = ["olives", "spinach"];
+
+const pizzaTimer = setTimeout(
+ (ingredient1, ingredient2) =>
+ console.log(`Here is your Pizza with ${ingredient1} and ${ingredient2} :)`),
+ 3000,
+ ...ingredients
+); // die Nachricht wird nach den vergangenen drei Sekunden gezeigt 3000ms
+console.log("Waiting...");
+
+if (ingredients.includes("spinach")) clearTimeout(pizzaTimer);
+
+setInterval(() => {
+ const now = new Date();
+ console.log(`${now.getHours()}:${now.getMinutes()}:${now.getSeconds()}`);
+}, 1000); // jede Sekunde wird die derzeitige Zeit angezeigt
diff --git a/javascript/Javascript Expert/chapter13/index.html b/javascript/Javascript Expert/chapter13/index.html
new file mode 100644
index 0000000..a550cca
--- /dev/null
+++ b/javascript/Javascript Expert/chapter13/index.html
@@ -0,0 +1,12 @@
+
+
+
+
+
+
+ Advanced DOM and Events
+
+
+
+
+
diff --git a/javascript/Javascript Expert/chapter13/script.js b/javascript/Javascript Expert/chapter13/script.js
new file mode 100644
index 0000000..4036ea6
--- /dev/null
+++ b/javascript/Javascript Expert/chapter13/script.js
@@ -0,0 +1,58 @@
+const objectOf = [
+ {
+ id: 1213,
+ text: "1213 is the year that Pope Innocent III issues a charter, calling for the Fifth Crusade to recapture Jerusalem.",
+ },
+ {
+ id: 1050,
+ text: "1050 is the year that Upon the death of Anund Jacob, he is succeeded by his brother Emund the Old as king of Sweden.",
+ },
+ {
+ id: 529,
+ text: "529 is the year that the Benedictine Order is founded.",
+ },
+ {
+ id: 1005,
+ text: "1005 is the year that Schaffhausen starts minting its own coins.",
+ },
+ {
+ id: 1543,
+ text: "1543 is the year that the Japanese receive the first firearms from shipwrecked Portuguese.",
+ },
+ {
+ id: 1203,
+ text: "1203 is the year that the Fleet of the crusaders enters the Bosphorus on June 23rd.",
+ },
+ {
+ id: 1795,
+ text: "1795 is the year that the United States and Spain sign the Treaty of Madr, which establishes the boundaries between Spanish colonies and the United States on October 27th.",
+ },
+ {
+ id: 1814,
+ text: "1814 is the year that Gervasio Antonio de Posadas becomes Supreme Director of Argentina on January 31st.",
+ },
+ {
+ id: 1712,
+ text: "1712 is the year that the Treaty of Aargau is signed by Catholics and Protestants, introducing the Protestant faith into Switzerland.",
+ },
+ {
+ id: 1316,
+ text: "1316 is the year that Battle of Manolada between the Burgundian and Majorcan claimants of the Principality of Achaea on July 5th.",
+ },
+ {
+ id: 1155,
+ text: "1155 is the year that the Papal bull Laudabiliter gives the King of England lordship over Ireland.",
+ },
+ {
+ id: 103,
+ text: "103 is the year that Emperor Trajan and Manius Laberius Maximus become Roman Consul.",
+ },
+ {
+ id: 1019,
+ text: "1019 is the year that a treaty between Sweden and Norway is conducted at Kungälv.",
+ },
+];
+
+objectOf.forEach(function (obj) {
+ console.log(`${obj["text"]}`);
+});
diff --git a/javascript/Javascript Expert/chapter16/ajaxCall.js b/javascript/Javascript Expert/chapter16/ajaxCall.js
new file mode 100644
index 0000000..cdf8b98
--- /dev/null
+++ b/javascript/Javascript Expert/chapter16/ajaxCall.js
@@ -0,0 +1,36 @@
+// const btn = document.querySelector(".btn-country");
+const countryContainer = document.querySelector(".countries");
+// const countryFlag = document.querySelector(".country-flag");
+// const flag = document.createElement("img");
+function renderCountry(data) {
+ const html = `
+
+
+
+
${data.name.common}
+
${data.region}
+
👫${(
+ +data.population / 1000000
+ ).toFixed(1)} Mil
+