Consider this generator function. Why is the argument of the first call to .next() essentially lost? It will yield and log each of the letter strings but skips "A". Can someone offer an explanation. Please advise on a way that I can access each argument each argument of the .next() method and store it in… Read More What happens to argument value of first .next() in generator function*

I’ve been learning how send method and yield assignment work in generator and met a problem: def gen(): for i in range(5): x = yield i print(x) s = gen() print(next(s)) print(s.send(15)) output: 0 #after print(next(s)) 15 1 so it prints 15 and 1 after print(s.send(15)). It broke my understanding of yield, because I don’t… Read More Why does generator yield value after loop

I am designing code to run certain enumeration simulations. I’ll put the code at the end, but I don’t think my question really should concern the details of this program. In principle I think my question could apply just as well to this much more minimal example script: class Generator: def __init__(self, n): self.current =… Read More Is there a danger in letting a generator run for a very long time?

Am I stupid of what does this generator function in Javascript do: function* generator() { let hook, waiting = yield new Promise(resolve => { function* wait() { resolve(yield) } hook = wait(); hook.next(); }); hook.next(waiting); } Source: https://github.com/padlet/async-semaphore >Solution : This one took a couple minutes to process. The resolve(yield) part actually gives the promise… Read More Javascript generator function?

Does Python already provide a function that generates the endless sequence 0,1,2,3,… ? I mean this: def gen_range(): count = 0 while True: yield count count = count + 1 >Solution : Yes it does. Check out the itertools.count built-in function. As you can read in the linked docs, you can set the starting number… Read More Does Python provide range() as generator?

I have the following javascript snippet: /** * Returns the maximal element in the `iterable` as calculated by the given function * @param {Iterable} iterable – iterable to find the maximal element in * @param {function} fn – function to calculate the maximal element * * @returns {any} – maximal element in the `iterable` */… Read More Uncaught TypeError: element is undefined when using generator function

I don’t have enough experience with generator expression to figure this out. I have a list and input statement like so: work = [‘Read’, ‘Write’, ‘Program’, ‘Email’] assign = input(f"Select what you have worked on > {(str(x) for x in work)}") The above code is not working! The work list might change. I also want… Read More creating an f-string generator expression and with index values