Array.frombeginnerArray.from() creates a new array from an iterable or array-like object.
Since strings are iterable in JavaScript, you can use Array.from() to split them into individual characters.
Challenge: Implement stringToChars using Array.from() to convert a string into an array of its characters.
stringToChars('hello') // β ['h', 'e', 'l', 'l', 'o']
stringToChars('') // β []