diff --git a/logic-exercises/exercise-day-2/indexOf.js b/logic-exercises/exercise-day-2/indexOf.js
new file mode 100644
index 0000000..123cfcb
--- /dev/null
+++ b/logic-exercises/exercise-day-2/indexOf.js
@@ -0,0 +1,9 @@
+var indexOf = function (source, query) {
+    for (var i = 0; i < source.length; i++) {
+        if (source[i] === query) {
+            return i;
+        }
+    }
+    return -1;
+};
+console.log(indexOf("abcde", "d"));
diff --git a/logic-exercises/exercise-day-2/indexOf.test.ts b/logic-exercises/exercise-day-2/indexOf.test.ts
new file mode 100644
index 0000000..e69de29
diff --git a/logic-exercises/exercise-day-2/indexOf.ts b/logic-exercises/exercise-day-2/indexOf.ts
new file mode 100644
index 0000000..6863dd4
--- /dev/null
+++ b/logic-exercises/exercise-day-2/indexOf.ts
@@ -0,0 +1,10 @@
+const indexOf = (source: string, query: string) => {
+    for (let i = 0; i < source.length; i++) {
+        if (source[i] === query) {
+            return i
+        }
+    }
+    return -1
+}
+
+console.log(indexOf("abcde", "e"))
\ No newline at end of file
diff --git a/logic-exercises/exercise-day-2/package.json b/logic-exercises/exercise-day-2/package.json
new file mode 100644
index 0000000..bd14eca
--- /dev/null
+++ b/logic-exercises/exercise-day-2/package.json
@@ -0,0 +1,13 @@
+{
+  "name": "exercise-day-2",
+  "version": "1.0.0",
+  "description": "",
+  "main": "index.js",
+  "scripts": {
+    "start":"clear && tsc --outFile indexOf.js indexOf.ts && node indexOf.js",
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "keywords": [],
+  "author": "",
+  "license": "ISC"
+}
\ No newline at end of file