diff --git a/Data-Structures/Tree/TreeTraversal.js b/Data-Structures/Tree/TreeTraversal.js
new file mode 100644
index 0000000000..296bfdb5ff
--- /dev/null
+++ b/Data-Structures/Tree/TreeTraversal.js
@@ -0,0 +1,30 @@
+// O(n) Time and O(n) Space Complexity
+
+function inOrderTraverse (tree, array) {
+ if (tree !== null) {
+ inOrderTraverse(tree.left, array)
+ array.push(tree.value)
+ inOrderTraverse(tree.right, array)
+ }
+ return array
+}
+
+function preOrderTraverse (tree, array) {
+ if (tree !== null) {
+ array.push(tree.value)
+ preOrderTraverse(tree.left, array)
+ preOrderTraverse(tree.right, array)
+ }
+ return array
+}
+
+function postOrderTraverse (tree, array) {
+ if (tree !== null) {
+ postOrderTraverse(tree.left, array)
+ postOrderTraverse(tree.right, array)
+ array.push(tree.value)
+ }
+ return array
+}
+
+export { inOrderTraverse, preOrderTraverse, postOrderTraverse }
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