diff --git a/Data Structures/es6SetAdd.js b/Data Structures/es6SetAdd.js
new file mode 100644
index 0000000..211191c
--- /dev/null
+++ b/Data Structures/es6SetAdd.js	
@@ -0,0 +1,12 @@
+// https://www.freecodecamp.org/learn/coding-interview-prep/data-structures/create-and-add-to-sets-in-es6
+
+function checkSet() {
+  var set = new Set([1, 2, 3, 3, 2, 1, 2, 3, 1]);
+  // Only change code below this line
+  [1, 2, 3, "Taco", "Cat", "Awesome"].forEach((element) => set.add(element));
+  // Only change code above this line
+  console.log(Array.from(set));
+  return set;
+}
+
+checkSet();