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nbb 2024-03-05
Chris McCormick 2024-03-05T21:43:32.470139Z
Should this work in nbb?
(defn down [i]
(if (> i 0)
(js/setTimeout #(recur (dec i)) 1000)
i))
(down 5)60: (defn down [i]
61: (if (> i 0)
62: (js/setTimeout #(recur (dec i)) 1000)
^--- No item 0 in vector of length 0
63: i))
64:
65: (down 5)
borkdude 2024-03-05T21:48:15.939179Z
In the anonymous function, where do you expect recur to go next?
borkdude 2024-03-05T21:48:33.115369Z
you probably want to write down instead
borkdude 2024-03-05T21:48:48.891669Z
since #(recur ...) means that the anonymous function itself will be called
🤯 2
borkdude 2024-03-05T21:50:09.483109Z
the error message could be better though
Chris McCormick 2024-03-05T21:50:31.891109Z
Ok thank you for fixing my brain! I'm using recur because I need to run 16k async functions and every other way I tried is smashing the stack. 😬
borkdude 2024-03-05T21:51:48.991979Z
async should not smash the stack I think
Chris McCormick 2024-03-05T21:51:49.697729Z
If I call done I end up with the same issue. Will have a think about this some more in the morning, thanks for your help!
borkdude 2024-03-05T21:53:07.218609Z
kondo would also warn about that recur issue btw:
Chris McCormick 2024-03-05T21:53:38.804989Z
Ah my kondo must be out of date, will update.
borkdude 2024-03-05T21:53:58.018919Z
neh, it does this since ages
Chris McCormick 2024-03-05T21:54:32.065129Z
Hm strange I'm not seeing an error. 🤔
borkdude 2024-03-05T21:54:32.503759Z
No stack issues in this example:
(defn down [i]
(if (> i 0)
(do (prn :i i)
(js/setTimeout #(down (dec i)) 0))
i))
(down 50000)Chris McCormick 2024-03-05T21:55:21.273039Z
Ok, thanks, I will try again with this pattern in the morning.
Chris McCormick 2024-03-05T21:56:19.242939Z
Oh, I silenced kondo for the whole namespae by accident when trying to silence a different warning, so never mind about that.
Chris McCormick 2024-03-06T21:16:04.592929Z
Thank you, your solution fixed my issue with no stack smash.
👍 1