C++ String built-in functions

s.size() -> returns the size of the string.

s.max_size() -> returns the maximum size that string can hold.

s.capacity() -> returns current available capacity of the string.

s.clear() -> clear the string.

s.empty() -> return true/false if the string is empty.

s.resize() -> change the size of the string.

S[i] -> access the ith index of the string.

s.at(i) -> access the ith index of the string.

s.back() -> access the last element of the string.

s.front() -> access the first element of the string.

s+= -> append another string.

s.append() -> append another string.

s.push_back() -> add character to the last of the string.

s.pop_back() -> remove the last character of the string.

s= -> assign string.

s.assign() -> assign string.

s.erase() -> erase characters from the string.

s.replace() -> replace a portion of the string.

s.insert() -> insert a portion to a specific position.

s.begin() -> pointer to the first element.

s.end() -> pointer to the next element after the last element of the string.