Fix upperSnakeCase string transformation

Author: arunkumarakilan

Sprint-2/3-mandatory-implement/2-cases.js

@@ -14,3 +14,13 @@
 // You will need to come up with an appropriate name for the function
 // Use the MDN string documentation to help you find a solution
 // This might help https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/toUpperCase
+
+function upperSnakeCase(str){
+    str = str.toUpperCase()
+
+  return str.replaceAll(" " , "_");
+;
+
+}
+console.log(upperSnakeCase("hello there"));
+console.log(upperSnakeCase("lord of the rings"));