feat(client, learn): add helper functions for common validation operations (#38605)

Co-authored-by: Randell Dawson <5313213+RandellDawson@users.noreply.github.com>

curriculum/challenges/english/02-javascript-algorithms-and-data-structures/debugging/understanding-the-differences-between-the-freecodecamp-and-browser-console.english.md

@@ -28,9 +28,9 @@ First, use <code>console.log</code> to log the <code>output</code> variable. The
 ```yml
 tests:
   - text: You should use <code>console.clear()</code> to clear the browser console.
-    testString: const removeJSComments = code.replace(/\/\*[\s\S]*?\*\/|\/\/.*$/gm, ''); const noSpaces = removeJSComments.replace(/\s/g, ''); assert(noSpaces.match(/console.clear\(\)/));
+    testString: assert(__helpers.removeWhiteSpace(__helpers.removeJSComments(code)).match(/console.clear\(\)/));
   - text: You should use <code>console.log()</code> to print the <code>output</code> variable.
-    testString: const noSpaces = code.replace(/\s/g, ''); assert(noSpaces.match(/console\.log\(output\)/));
+    testString: assert(__helpers.removeWhiteSpace(code).match(/console\.log\(output\)/));
 
 ```
 
@@ -53,8 +53,6 @@ let output = "Get this to log once in the freeCodeCamp console and twice in the
 
 </div>
 
-
-
 </section>
 
 ## Solution