diff --git a/arrays.js b/arrays.js
new file mode 100644
index 0000000..93cb109
--- /dev/null
+++ b/arrays.js
@@ -0,0 +1,30 @@
+'use strict'
+
+let favoriteAnimals = ['blowfish', 'capricorn', 'giraffe'];
+
+favoriteAnimals.push("turtle");
+
+console.log(favoriteAnimals);
+
+favoriteAnimals.splice(1, 0, "meerkat");
+
+
+console.log("The new value of the array is the initial value with two new elements added blowfish ,meerkat ,capricorn ,giraffe ,turtle");
+
+console.log(favoriteAnimals);
+
+console.log("The array has a length of " + favoriteAnimals.length);
+
+favoriteAnimals.splice(3,1);
+
+console.log(favoriteAnimals);
+
+console.log("The item you're looking for is at index : " + favoriteAnimals.indexOf("meerkat"));
+
+// we can use the property typeOf to locate a certain element within an array *Can also be used in strings
+
+
+favoriteAnimals.splice(1, 1);
+
+
+console.log(favoriteAnimals);
\ No newline at end of file
diff --git a/functions.js b/functions.js
new file mode 100644
index 0000000..a8384c1
--- /dev/null
+++ b/functions.js
@@ -0,0 +1,155 @@
+// first assignment
+function random(x, y, z) {
+    return x + y + z;
+}
+
+console.log(random(1, 2, 3));
+// end first assignment
+
+// second assignment
+function colorCar(color) {
+    console.log("a " + color + " car");
+}
+
+colorCar("red");
+// end second assignment
+
+// third assignment
+const arr = ["Dog", "Cat", "Hamster"];
+
+function third(arr) {
+    console.log(arr);
+}
+
+third(arr);
+// end third assignment
+
+//fourth assignment
+function vehicleType(color, code) {
+    if (code === 1) {
+        code = "car";
+    } else {
+        code = "motorbike"
+    }
+    console.log("a " + color, code);
+}
+vehicleType("blue", 2)
+// end fourth assignment
+
+// fifth assignment
+let confirm = 3 === 3 ? console.log("true") : console.log("false");
+// end fifth assignment
+
+// sixth assignment
+function vehicle(color, age, code) {
+    if (age === 0) {
+        age = "okay";
+    } else if (age === 1) {
+        age = "used";
+    } else {
+        age = "new";
+    };
+    switch (code) {
+        case 1:
+            code = listOfVehicles[1]
+            break;
+        case 2:
+            code = "race car";
+            break;
+        case 3:
+            code = "tractor";
+            break;
+        case 4:
+            code = "boat";
+            break;
+        case 5:
+            code = "car";
+            break;
+    }
+    console.log("a " + color, age, code);
+}
+
+vehicle("blue", 1, 5);
+// end sixth assignment
+
+// seventh assignment
+const listOfVehicles = ["motorbike", "caravan", "bike", "car", "boat"];
+// end seventh assignment
+
+// eighth assignment
+console.log(listOfVehicles[3]);
+// end eighth assignment
+
+// ninth assignment
+vehicle("green", 3, 1);
+// end ninth assignment
+
+// tenth assignment
+for (i = 0; 1 > i; i++) {
+    let slogan = "Amazing Joe's Garage, we service " + listOfVehicles;
+    slogan = slogan.replace(/,/g, ", ");
+    console.log(slogan);
+};
+// end tenth assignment
+
+// eleventh assignment
+listOfVehicles.push("Jet");
+console.log(listOfVehicles);
+// end eleventh assignment
+
+// twelfth assignment
+let emptyObject = [];
+// end twelfth assignment
+
+// thirteenth assignment
+const listOfTeachers = ["Dine", "Unmesh", "Jim"];
+console.log(listOfTeachers);
+// end thirteenth assignment
+
+// fourteenth assignment
+listOfTeachers.splice(0, 1, "Dine taught HTML&CSS");
+listOfTeachers.splice(1, 1, "Unmesh taught Git");
+listOfTeachers.splice(2, 1, "Jim Teaches JavaScript");
+console.log(listOfTeachers);
+// end fourteenth assignment
+
+// fifteenth assignment
+let x = [1, 2, 3];
+let y = [1, 2, 3];
+let z = y;
+
+console.log(x == y);
+console.log(x === y);
+console.log(z == y);
+console.log(z == x);
+// end fifteenth assignment
+
+// sixteenth assignment
+
+let o1 = { foo: 'bar' };
+let o2 = { foo: 'bar' };
+let o3 = o2;
+
+console.log(o1);
+console.log(o2);
+console.log(o3);
+
+o2 = { foo: "Kenan" };
+console.log(o3);
+console.log("It didn't change the value of o3");
+
+o1 = { foo: "HYF" };
+console.log(o3);
+console.log("It also didn't change the value of o3");
+
+o2 = o3;
+
+console.log(o3);
+console.log("No it does not");
+// end sixteenth assignment
+
+// seventeenth assignment
+let bar = 42;
+console.log(typeof typeof bar);
+
+console.log("It has returned a string because the first typeOf property returned the word 'number' and the second typeOf was assigned to the word 'number'")
diff --git a/strings.js b/strings.js
new file mode 100644
index 0000000..a7d2c10
--- /dev/null
+++ b/strings.js
@@ -0,0 +1,11 @@
+'use strict'
+
+let myString = "hello,this,is,a,difficult,to,read,sentence";
+
+console.log(myString);
+
+console.log(myString.length);
+
+myString = myString.replace(/,/g, " ");
+
+console.log(myString);
\ No newline at end of file