feat: adding contextual typing and function typing with inference

Author: dheysonalves

lesson2/functions.ts

@@ -0,0 +1,11 @@
+const add = (a: number, b: number) => {
+	return a + b;
+};
+
+// No type annotations here, but TypeScript can spot the bug
+const names = ["Alice", "Bob", "Eve"];
+
+// Contextual typing for function
+names.forEach(function (s) {
+	console.log(s.toUpperCase());
+});