fix(curriculum): tests passing with seed code in Music player (#55586)

Co-authored-by: Sem Bauke <sem@freecodecamp.org>

curriculum/challenges/english/15-javascript-algorithms-and-data-structures-22/learn-basic-string-and-array-methods-by-building-a-music-player/6555e39a5f4c6f138c7d9405.md

@@ -30,19 +30,19 @@ assert.match(code, /const\s+shuffle\s*=\s*\(\s*\)\s*=>\s*{\s*[\s\S]*?\}\s*;?/);
 You should use the `sort()` method on `userData?.songs`.
 
 ```js
-assert.match(code, /userData\?\.songs\.sort\(/)
+assert.match(code, /const\s+shuffle\s*=\s*\(\s*\)\s*=>\s*{\s*userData\?\.songs\.sort\(/);
 ```
 
 Your `sort()` method should have a callback function that uses arrow syntax.
 
 ```js
-assert.match(code, /userData\?\.songs\.sort\(\s*\(\s*\)\s*=>\s*/)
+assert.match(code, /const\s+shuffle\s*=\s*\(\s*\)\s*=>\s*{\s*userData\?\.songs\.sort\(\s*\(\s*\)\s*=>\s*/);
 ```
 
 The callback of your `sort()` method should return `Math.random() - 0.5`.
 
 ```js
-assert.match(code, /userData\?\.songs\.sort\s*\(\s*\(\s*\)\s*=>(\s*{\s*return\s+Math\.random\(\s*\)\s*-\s*0\.5\s*;?\s*}\s*)|(\s*Math\.random\(\s*\)\s*-\s*0\.5\s*)\s*\)\s*;?/);
+assert.match(code, /const\s+shuffle\s*=\s*\(\s*\)\s*=>\s*{\s*userData\?\.songs\.sort\s*\(\s*\(\s*\)\s*=>(\s*{\s*return\s+Math\.random\(\s*\)\s*-\s*0\.5\s*;?\s*}\s*)|(\s*Math\.random\(\s*\)\s*-\s*0\.5\s*)\s*\)\s*;?/);
 ```
 
 # --seed--

curriculum/challenges/english/15-javascript-algorithms-and-data-structures-22/learn-basic-string-and-array-methods-by-building-a-music-player/65a60aa3efd8fa079c2d1537.md

@@ -33,10 +33,11 @@ Inside your callback function, add another `if` statement to check if `a.title`
 
 # --hints--
 
-You should have an `if` statement inside your callback function.
+You should have a second `if` statement inside your callback function.
 
 ```js
-assert.match(code, /if\s*\(/);
+const callback = code.split(/const\s+sortSongs\s*=\s*\(\s*\)\s*=>\s*\{/)?.[1]?.split(/\}\s*\)\s*;?\s*\}/)?.[0];
+assert.lengthOf(callback?.match(/if\s*\(/g), 2);
 ```
 
 Your `if` statement should check if `a.title` is greater than `b.title`.

curriculum/challenges/english/15-javascript-algorithms-and-data-structures-22/learn-basic-string-and-array-methods-by-building-a-music-player/65c64fe6c770a22db893e931.md

@@ -22,7 +22,7 @@ assert.isFunction(sortSongs);
 Your `sortSongs` function should use arrow function syntax.
 
 ```js
-assert.match(code, /const|let\s+sortSongs\s*=\s*\(\s*\)\s*=>\s*{\s*}\s*;?/)
+assert.match(code, /(const|let)\s+sortSongs\s*=\s*\(\s*\)\s*=>\s*{\s*}\s*;?/)
 ```
 
 # --seed--

curriculum/challenges/english/15-javascript-algorithms-and-data-structures-22/learn-basic-string-and-array-methods-by-building-a-music-player/660af462d18730978fdf5c50.md

@@ -16,7 +16,7 @@ Start by removing the `printGreeting`, `printMessage`, and `addTwoNumbers` funct
 You should not have a `printGreeting` function.
 
 ```js
-assert.notMatch(code, /const printGreeting = () => {/);
+assert.notMatch(code, /const printGreeting = \(\) => {/);
 ```
 
 You should not have a `printMessage` function.