Implement upperSnakeCase function

Added a function to convert a string to upper snake case.

Author: djebsoft

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

@@ -14,3 +14,9 @@
 // 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(wordsSet) {
+  let wsSnakeCase = wordsSet.replaceAll(' ','_');
+  let wsupperSnakeCase = wsSnakeCase.toUpperCase();
+  return console.log(wsupperSnakeCase);
+}
+upperSnakeCase('i do not know'); // evaluates to: "I_DO_NOT_KNOW"