Implement upperSnakeCase function to convert strings

Author: Maryanne-K

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(sentence) {
+    const upperCase = sentence.toUpperCase();
+    const snakeCase = upperCase.replaceAll(" ", "_");
+    return snakeCase;
+}
+console.log(upperSnakeCase("hello there"));