Challenge 3 — Solution

Task: Write the contents of a file stringUtils.js that has BOTH a
default export (a function capitalize(str)) and a named export (a
function reverse(str)). Write main.js that imports both together in
a single import statement and tests each one.

// stringUtils.js
export default function capitalize(str) {
    return str.charAt(0).toUpperCase() + str.slice(1);
}

export function reverse(str) {
    return str.split('').reverse().join('');
}


// main.js
import capitalize, { reverse } from './stringUtils.js';

console.log(capitalize("hello"));
console.log(reverse("hello"));


Expected output:

Hello
olleh

Notes:
- A single file can mix a default export and any number of named
  exports — capitalize is the default, reverse is named, and both
  are imported together in one statement: default first, then named
  exports in braces.
- reverse uses split('') to turn the string into an array of
  characters, Array's own reverse() method (Fundamentals Chapter 6,
  though not explicitly covered there) to flip the order, then
  join('') to turn it back into a string.
- The import line's order matters syntactically: the default import
  (no braces) must come before the named imports (in braces), not
  the other way around.