Remove spaces from std::string in C++

Question

What is the preferred way to remove spaces from a string in C++? I could loop through all the characters and build a new string, but is there a better way?

Answer 1

string removeSpaces(string word) {
    string newWord;
    for (int i = 0; i < word.length(); i++) {
        if (word[i] != ' ') {
            newWord += word[i];
        }
    }

    return newWord;
}

This code basically takes a string and iterates through every character in it. It then checks whether that string is a white space, if it isn't then the character is added to a new string.