What does yield break return?

It specifies that an iterator has come to an end. You can think of yield break as a return statement which does not return a value. For example, if you define a function as an iterator, the body of the function may look like this: for (int i = 0; i < 5; i++) { yield return i; } Console.

What is the difference between yield return and yield break?

The yield return statement appends a value to the IEnumerable set. The yield break statement exits any looping construct to prevent more items being added to the return set. If you omit yield break, the loop exits as it normally would. The difference between using the yield return and simply returning a set is subtle.

Is yield break necessary?

2 Answers. No this is not necessary. It will work: public static IEnumerable GetDiff(int start, int end) { while (start < end) { yield return start; start++; } // yield break; – It is not necessary.

Does yield break return null?

Kudos! yield break returns an empty enumerable… essentially (in your case) the same as return new T[0] but without creating an empty array.

Does yield break stop a coroutine?

Simply adding the yield break statement will end a Coroutine before it’s finished.

Does yield return continue?

The point of yield is that it generates an output, effectively pausing / stopping the state machine at the place where it’s used. The effect of a possible yield continue would be none at all in respect to the behavior of the state machine. Hence it is not needed.

What is yield return null?

yield return null will wait until the next frame and then continue execution. In your case it will check the condition of your while loop the next frame. Without yield return null it just executes trough the while loop in one frame.

Why do we use yield?

Yield is a keyword in Python that is used to return from a function without destroying the states of its local variable and when the function is called, the execution starts from the last yield statement. Any function that contains a yield keyword is termed a generator. Hence, yield is what makes a generator.

How do you stop coroutine Kotlin?

Hold onto the Job object returned by launch() , then call cancel() on that Job .

How do I get out of coroutine?

To stop a coroutine from “inside” the coroutine, you cannot simply “return” as you would to leave early from an ordinary function. Instead, you use yield break . You can also force all coroutines launched by the script to halt before finishing.

Does yield stop execution Python?

When the Python yield statement is hit, the program suspends function execution and returns the yielded value to the caller. (In contrast, return stops function execution completely.) When a function is suspended, the state of that function is saved.

How do I return from coroutine?

Put a yield at the end of your coroutine with the value you want to return…

  1. private IEnumerator LoadSomeStuff( ) {
  2. yield return www;
  3. if (String. IsNullOrEmpty(www. error) {
  4. yield return “success”;
  5. } else {
  6. yield return “fail”;
  7. }
  8. }