Scope of the variables declared by Let Const and var in JS

Author: Kirttinath

scope.js

@@ -0,0 +1,20 @@
+function f1()
+{
+    var x=10;
+    f2();
+    function f2()
+    {
+        var b=100;
+        f3();
+        function f3()
+        {
+            console.log(a);
+
+            
+        }
+        
+    }
+   
+}
+var a=100;
+f1();