The answer
Yes, most modern languages allow you to iterate directly over the characters of a string using a for-each construct, which is safer and cleaner than index tracking.
Iterating Through Strings Effectively
Can I use a for-each loop on strings?
More FAQs in Iterating Through Strings Effectively
Structurally it is the same. The main difference is that strings are often immutable, meaning you cannot change individual characters in-place during the loop.
Immutability means that once a string is created in memory, its contents cannot be altered. Any modification results in the creation of a brand new string.
Because strings are immutable, adding to a string inside a loop forces the computer to reallocate memory and copy the data repeatedly, resulting in O(N^2) time complexity.
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