Have you used a loop when processing string data?

Yes, loops are often used in string data processing for iterating over characters, searching for substrings, or transforming data.

Example in Swift, where we iterate over the characters of a string and print them:

let text = "Hello, world!"
for char in text {
    print(char)
}

Loops are also useful for tasks such as counting specific characters, replacing characters, or splitting a string into parts.