I'm a little confused about coroutines

Unity Engine
1

Hi,

I’m a little confused about coroutines.
See the code below.

IEnumerator f()
{
    yield return StartCoroutine(g());
   
    if (one == true)
    {
        Do something ....
    }
}

IEnumerator g()
{
    if (two == true)
    {
        Do something ....
    }
    if (three == true)
    {
        Do something ....
    }
   
    yield return null;
}

Is it right that if-statement “two” is executed first, then if-statement “three” and then if-statement “one”?
Are the if-statements “two” and “three” both finished before “yield return null” goes back to IEnumerator f()?

2

if you start coroutine with ‘f()’, then the first thing that happens is we start coroutine g() and wait for it to complete

while g is running, ‘two’ and ‘three’ are processed, THEN we yield null and wait one frame

now g is complete so we return to f, and we run ‘one’

3

Ok thanks.
So it’s for sure that “three” is finished before we return to f and run “one”?

4

yes

5

Thanks!
It’s all clear now.