Hi folks! New Elm user here. I’m a very experienced front-end engineer with a preference for functional languages. (I’ve studied Haskell and Clojure in my free time for the fun of it.) I also do generative art, normally in JS. I was excited to try out Elm as an alternative for my art projects, but …

Hi everyone! Thanks for your help – I’ve got it working now. I had a Debug.log first thing in my main function that wasn’t getting printed before the error happened, so I assumed the problem was as the array crossed the border into Elm. But after reducing my Elm code down, it looks like the actual…

Hello, welcome to Elm. Can you show your code? I’ve just sent through an array of 50 million integers as a flag, and traced out List.length on the incoming array, so it doesn’t look like it’s the size of the array that’s the problem. Might be how you’re manipulating the data when it’s received? Co…

Before going down the route described below, I would check that the “maximum call stack size exceeded” error is not coming from your own Elm code. What are you doing with the 250K elements once you receive them through the port? The trick that may help is - I believe it is possible to pass a File …

Hello, Elm ports will check the type of every item in your list if you specify the type, and convert js arrays to linked list if you declare a List (whereas Elm Array are plain js arrays). The trick might be to declare your data as Json Value, an Array of Json Values or even using Bytes, then you c…

[image] Warry: or even using Bytes Worth noting that you cannot pass Bytes through a port.

Hi everyone! Thanks for the suggestions. Sounds like there should be a way to do this. I’ll try out some of your suggestions and report back with a small, self-contained example if I still can’t get it to work. Thanks for the help!

[image] Warry: whereas Elm Array are plain js arrays [image] noise-machines: Also, good to know that there’s a difference between Arrays and Lists! I think Arrays are better for my use case since I need random access. It may also be worth pointing out that an Elm Array is not implement…

[image] rupert: It may also be worth pointing out that an Elm Array is not implemented as a plain JS Array. right, I forgot that this changed. my use case dated from the 0.17 era o som’thin’. my bad !

Good to know! Thanks for the heads up!

How can I send large arrays through ports?

Learn

Warry December 29, 2020, 2:24pm 9

right, I forgot that this changed. my use case dated from the 0.17 era o som’thin’. my bad !

Topic		Replies	Views
Using Array.Hamt and ports? Learn	5	1084	March 23, 2018
Pass elm/bytes through a port? Learn	7	2261	July 6, 2019
Passing array though port causes error on macOS Learn	3	581	January 21, 2021
Tuples in ports Learn	5	1459	April 16, 2021
How to expose (large amounts of data) from Elm's model to JS without ports? Learn	1	1152	March 27, 2018

How can I send large arrays through ports?

Related topics