Exercise 10: Reverse String (preserve spaces)
Problem Statement
Function `reverseString(str)` banao jo string ko reverse kare but spaces ko preserve kare.
Example: reverseString("hello world") => "dlrow olleh"
Sample Output:
reverseString("hello") => "olleh"
reverseString("hello world") => "dlrow olleh"Solution
const reverseString = (str) => String(str ?? "").split("").reverse().join("");Explanation
Overall Goal:
- String ko completely reverse karna.
Real world:
- Text manipulation: reverse strings.
- Algorithms: string reversal.