Maximum possible array length

[Capitano]

Hello all,

in my clockface I'm developing right now I want to record about 330 integer values. I store them in an array and save the array in a cbor file to keep the values if the user starts other apps.

When I read the cbor file to reload the array during startup of the clockface I get the error

Fatal Jerryscript Error: ERR_OUT_OF_MEMORY

If I use (much) smaller arrays I don't get this error.

Is there a known maximum array length for the Fitbit devices?

In this case I use an Ionic.

Regards

Capitano

[Gondwana]

I think the JS Number type takes 8 bytes. Try using Int16Array or something like that. And I think there are significant overheads in JSON/CBOR as well; try binary file I/O.

[Durus]

This is a good post and has a section on arrays.

https://github.com/gaperton/ionic-views/blob/master/docs/optimization-guidelines.md#do-not-use-funct...