Add solution to match whitespace problem (#27470)

* Add solution to match whitespace problem

* fix: corrected case of countWhiteSpace on line 61

curriculum/challenges/english/02-javascript-algorithms-and-data-structures/regular-expressions/match-whitespace.english.md

@@ -57,6 +57,8 @@ let result = sample.match(countWhiteSpace);
 <section id='solution'>
 
 ```js
-// solution required
+let sample = "Whitespace is important in separating words";
+let countWhiteSpace = /\s/g;
+let result = sample.match(countWhiteSpace);
 ```
 </section>