Reopen : Is it possible to use third party library in worklet? #3330

[sumitmanral]

I am using GestureDetectors and have a grid and l have all cell draw functions as worklets .I have used value formatters for the text, number , date etc which call 3 rd party libs like numbro , date-fns . Is there a way I can use runOnJS and wait on the result . Please point me to an example where we are awaiting on values set on runOnJS .

[tomekzaw]

Unfortunately, it is not possible to wait for the result in worklets. Currently you cannot use functions from numbro or date-fns because they are not workletized. You can either implement them on your own as worklets or use built-in Intl module.

[fax1ty]

How can I make it with Reanimated 3?
https://github.com/wcandillon/can-it-be-done-in-react-native/blob/master/season5/src/Headspace/Play.tsx#L16

[MatiPl01]

You would have to copy-paste code and add "worklet" string at the beginning of each function you want to call on the UI thread (inside a worklet).

[fax1ty]

Is it ok to call third-party modules inside of a worklet?

[MatiPl01]

I can see your issue now. Probably MakeFromSVGString is not a worklet function, so you won't be able to create a Skia Path inside a worklet. The MakeFromSVGString method should be workletized in the react-native-skia library in order to make it work on the UI thread.

Usually, you won't be able to call third-party modules inside worklets because they do not provide workletized versions of exported functions/methods.