fix(curriculum): remove callback thereby stripping js comments (#45133)

* fix: strip js comments

* fix: revert helper export, better test approach

Co-authored-by: Shaun Hamilton <shauhami020@gmail.com>

Co-authored-by: Shaun Hamilton <shauhami020@gmail.com>

curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/declare-a-read-only-variable-with-the-const-keyword.md

@@ -32,16 +32,14 @@ Change the code so that all variables are declared using `let` or `const`. Use `
 `var` should not exist in your code.
 
 ```js
-(getUserInput) => assert(!getUserInput('index').match(/var/g));
+assert.notMatch(code, /var/g);
 ```
 
 You should change `fCC` to all uppercase.
 
 ```js
-(getUserInput) => {
-  assert(getUserInput('index').match(/(FCC)/));
-  assert(!getUserInput('index').match(/fCC/));
-}
+assert.match(code, /(FCC)/);
+assert.notMatch(code, /(fCC)/);
 ```
 
 `FCC` should be a constant variable declared with `const`.
@@ -54,14 +52,13 @@ assert.match(code, /const\s+FCC/);
 `fact` should be declared with `let`.
 
 ```js
-(getUserInput) => assert(getUserInput('index').match(/(let fact)/g));
+assert.match(code, /(let\s+fact)/g);
 ```
 
 `console.log` should be changed to print the `FCC` and `fact` variables.
 
 ```js
-(getUserInput) =>
-  assert(getUserInput('index').match(/console\.log\(\s*FCC\s*\,\s*fact\s*\)\s*;?/g));
+assert.match(code, /console\.log\(\s*FCC\s*\,\s*fact\s*\)\s*;?/g);
 ```
 
 # --seed--

curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/explore-differences-between-the-var-and-let-keywords.md

@@ -42,19 +42,19 @@ Update the code so it only uses the `let` keyword.
 `var` should not exist in the code.
 
 ```js
-(getUserInput) => assert(!getUserInput('index').match(/var/g));
+assert.notMatch(code, /var/g);
 ```
 
 `catName` should be the string `Oliver`.
 
 ```js
-assert(catName === 'Oliver');
+assert.equal(catName, 'Oliver');
 ```
 
 `catSound` should be the string `Meow!`
 
 ```js
-assert(catSound === 'Meow!');
+assert.equal(catSound, 'Meow!');
 ```
 
 # --seed--