shortest way to get first char from every word in a string

Question

I want a shortest way to get 1st char of every word in a string in C#.

what I have done is:

string str = \"This is my style\";
string [] output = str         


        

Answer 1

I think your solution is perfectly fine, but if you want better performance you can try:

string str = "This is my style";
Console.Write(str[0]);
for(int i = 1; i < str.Length; i++)
{
    if(str[i-1] = " ")
        Console.Write(" " + str[i]);
}

You might get a lower constant factor with this code but it still runs in O(n). Also, I assume that there will never be more than one space in a row and it won't start with space.

If you want to write less code you can try:

str result = str.Split(" ").Select(y => y[0]).ToList();

Or something.