diff --git a/Data Structures/linkedListClassAdd.js b/Data Structures/linkedListClassAdd.js
new file mode 100644
index 0000000..838af63
--- /dev/null
+++ b/Data Structures/linkedListClassAdd.js	
@@ -0,0 +1,35 @@
+// https://www.freecodecamp.org/learn/coding-interview-prep/data-structures/create-a-linked-list-class
+
+function LinkedList() {
+  var length = 0;
+  var head = null;
+
+  var Node = function (element) {
+    this.element = element;
+    this.next = null;
+  };
+
+  this.head = function () {
+    return head;
+  };
+
+  this.size = function () {
+    return length;
+  };
+
+  this.add = function (element) {
+    // Only change code below this line
+    const newNode = new Node(element);
+    length++;
+    let current = head;
+    if (current === null) {
+      head = newNode;
+      return;
+    }
+    while (current.next !== null) {
+      current = current.next;
+    }
+    current.next = newNode;
+    // Only change code above this line
+  };
+}