Send a value in — practice exercise

What you'll be asked to do

1. 1.Send a value inexercise · easy · 10 min

   Send a name into a paused generator.

   Passes when: #out should show Hello Ada.

2. 2.Show the first next only starts itexercise · easy · 10 min · practice plan

   Confirm the value passed to the first call is ignored.

   Passes when: #out should show not used.

3. 3.Build a running totalexercise · easy · 10 min · practice plan

   Add several values into a generator one at a time.

   Passes when: #out should show 15.

4. 4.Stop a generator earlyexercise · easy · 10 min · practice plan

   Call return on a generator and check it reports done.

   Passes when: #out should show true.

5. 5.Throw into a generatorexercise · medium · 10 min · practice plan

   Throw an error into a generator that catches it.

   Passes when: #out should show caught: stop.

6. 6.Fix the value expected on the first callbug fix · easy · 8 min

   Nothing is paused yet when the first next() runs, so its argument is thrown away.

   Passes when: #out should show undefined.

7. 7.Fix the total never sent inbug fix · easy · 8 min · practice plan

   Calling next with no argument never advances the running total.

   Passes when: #out should show 5.

8. 8.Fix the generator used after returnbug fix · easy · 8 min · practice plan

   Once returned, further calls should stay done.

   Passes when: #out should show true.

9. 9.Fix the throw with no catch insidebug fix · easy · 8 min · practice plan

   Without a try block inside, the thrown error escapes the generator entirely instead of being handled.

   Passes when: #out should show caught inside.

10. 10.Fix while true assumed to hangbug fix · easy · 8 min · practice plan

    A while true loop inside a generator is safe, since yield pauses it — capping it out of caution breaks the sequence early.

    Passes when: #out should show 0,1,2.

Between them these tasks cover next(value), return() and throw().

Looking for a different chapter? See every practice set, or switch to the interview theory questions.