Get the string backward until it hit certain character

Sorry if this question has been asked before. But I am unable to find it.

Is there actually a way to get and cut the string from backwards until it hit certain char ?

This is currently a working code.

string path = "LivingOrganism/Animal/Bird/Chicken.exe";
public void SomeFunc()
{
	//count the string from the back until it hit the seperator
        string[] splitted = path.Split(new string[] { "/" }, StringSplitOptions.RemoveEmptyEntries).ToList().ToArray();
        string combineStr = "";
        for (int i = 0; i < splitted.Count()-1; i++)
                combineStr += splitted[i] += "/";

	    path = combineStr;
        print("results: " + path);
}

So everytime SomeFunc() is called;
<br>
first call is LivingOrganism/Animal/Bird/
<br>
second call is LivingOrganism/Animal/
<br>
third call is LivingOrganism/
<br>
fourth call is
<br>
which is what i intended to do.

however, is there actually a way to optimize this. ?
feels kinda ugly that i need to split the char first and the recombine them in forloop

You can try using LastIndexOf and Substring. Something like the following:

void SomeFunc1()
{
    string result;
    if (path.Length == 0)
    {
        result = path;
    }
    else
    {
        var lastIndexOf = path.LastIndexOf("/",path.Length - 2);
        result = lastIndexOf switch
        {
            >= 0 => path.Substring(0, lastIndexOf + 1),
            _ => string.Empty
        };
    }
    Console.WriteLine("results: " + result);
    path = result;
}

Note that System.IO provides path manipulation functions so you can also try just:

void SomeFunc1()
{
    path = Path.GetDirectoryName(path);
    Console.WriteLine(path);
}

Here is a code snippet that should work. There are probably better solutions.

string path = "LivingOrganism/Animal/Bird/Chicken.exe";
    public void SomeFunc()
    {
    	for(int i=path.Length-1;i>=0;i--){
    		if(path[i] == '/' || i==0){
    			path = path.Remove(i);
    			break;
    		}
    	}
            Console.WriteLine("results: " + path);
    }