launch is used to fire and forget coroutine. It is like starting a new thread. If the code inside the launch terminates with exception, then it is treated like uncaught exception in a thread — usually printed to stderr in backend JVM applications and crashes Android applications. join is used to wait for completion of … Read more
The oft referenced Unity3D coroutines in detail link is dead. Since it is mentioned in the comments and the answers I am going to post the contents of the article here. This content comes from this mirror. Unity3D coroutines in detail Many processes in games take place over the course of multiple frames. You’ve got … Read more
Functions don’t wait for coroutines before return, however you could use an Action to give some kind of return. Put this in your Start function WWW www = new WWW(“http://google.com”); StartCoroutine(WaitForRequest(www,(status)=>{ print(status.ToString()); })); and add this. private IEnumerator WaitForRequest(WWW www,Action<int> callback) { int tempInt = 0; yield return www; if (string.IsNullOrEmpty(www.error)) { if(!string.IsNullOrEmpty(www.text)) { tempInt … Read more
Something like: import threading thr = threading.Thread(target=foo, args=(), kwargs={}) thr.start() # Will run “foo” …. thr.is_alive() # Will return whether foo is running currently …. thr.join() # Will wait till “foo” is done See the documentation at https://docs.python.org/library/threading.html for more details.
To understand what yield does, you must understand what generators are. And before you can understand generators, you must understand iterables. Iterables When you create a list, you can read its items one by one. Reading its items one by one is called iteration: >>> mylist = [1, 2, 3] >>> for i in mylist: … Read more