diff --git a/Sample/arrays/index.html b/Sample/arrays/index.html
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+
+
+
+
+
+ Javascript Training
+
+
+ Javascript Training
+
+
+
diff --git a/Sample/arrays/index.js b/Sample/arrays/index.js
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+// Introduction to Arrays
+
+const teammates = ["Nezumi", "Khue", "Dat"];
+console.log(teammates);
+
+const year = new Array(2001, 1998, 2004, 2005);
+
+console.log(teammates[0]);
+console.log(teammates[2]);
+
+console.log(teammates.length);
+console.log(teammates[teammates.length - 1]);
+
+teammates[2] = "Huy";
+console.log(teammates);
+
+const firstName = "Jonas";
+const jonas = [firstName, "Schmedtmann", 2037 - 1991, "teacher", teammates];
+console.log(jonas);
+console.log(jonas.length);
+
+// Basic Array Operations (Methods)
+// Add elements
+const newLength = teammates.push("Lien");
+console.log(teammates);
+console.log(newLength);
+
+teammates.unshift("Dat");
+console.log(teammates);
+
+// Remove elements
+teammates.pop(); // Last
+const popped = teammates.pop();
+console.log(popped);
+console.log(teammates);
+
+teammates.shift(); // First
+console.log(teammates);
+
+console.log(teammates.indexOf("Nezumi"));
+console.log(teammates.indexOf("Khue"));
+
+teammates.push(23);
+console.log(teammates.includes("Nezumi"));
+console.log(teammates.includes("Khue"));
+console.log(teammates.includes(23));
+
+if (teammates.includes("Nezumi")) {
+ console.log("You have teammate who is name Nezumi");
+}