Hi guys, someone know if it's possible to create an extension function for "dynamic" ?

# javascript

[coletz]

Hi guys, someone know if it's possible to create an extension function for "dynamic" ?

[gildor]

Maybe just use extension function for Any?

[coletz]

Already tried, it's not working. If I write something like fun Any?.test(){..} and try to invoke .test() on a dynamic obj, it tries to call the javascript function "test" and not the ext fun

[gildor]

Are you sure that you have proper import?

[coletz]

Pretty sure everything is correct

[r4zzz4k]

Isn't dynamic exactly about translating everything you do with it directly into JavaScript, so extensions on it sound a bit odd?

[coletz]

AFAIK yes, that's why also .let or other stuff aren't working without a cast

[r4zzz4k]

Hey, totally random finding: there is an annotation called @kotlin.internal.DynamicExtension exactly for this purpose, but it's, well, internal. 🙂
https://github.com/JetBrains/kotlin/blob/ac0f5548aa0d616bbaf87397921b278c09580b2f/libraries/stdlib/src/kotlin/internal/Annotations.kt#L56
https://github.com/JetBrains/kotlin/blob/ba6da7c40a6cc502508faf6e04fa105b96bc7777/libraries/stdlib/js/src/kotlin/dynamic.kt#L23

[coletz]

well, at least now I know I'm not doing it wrong 🙂