It seems that core-js npm bundle structure does no...

# javascript

[altavir]

It seems that core-js npm bundle structure does not correspond to the one promised in the documentation. Any ideas?

[Robert Jaros]

try adding manually core-js 3.2.1 to your project

[altavir]

Already done that. The problem is that core-js added via gradle/yarn is not the same core-js installed via npm. They have completely differen structure inside.

[altavir]

For now I've just copied one from system-wide node-modules to project build node-modules and everything started to work properly

[altavir]

It seems like it installs old version on core-js even when I explicitely ask for newer version.

[snrostov]

Can you please show your package.json and yarn.lock in build/js?

[altavir]

Will do first thing in the morning.

[altavir]

Here they are. The error is reproducing in this configuration

package.jsonyarn.lock

[altavir]

The actually loaded version is 2.6.9

[snrostov]

You have 2 versions of core-js: 3.2.1 and 2.6.9
3.2.1 is local to your dataforge-vis-dataforge-vis-common, so it is visible only inside this module. Seems like it version should be used for kotlin-extensions also, but kotlin-extension is in top level, so for this module core-js is resolved to 2.6.9.

It could be fixed by putting "core-js": "3.2.1" in `kotlin-extension`'s package.json or by using https://yarnpkg.com/lang/en/docs/selective-version-resolutions/ (you may put "resolutions": { "kotlin-extension/core-js":"3.2.1" }) in root package.json. Unfortunately it is not possible since both files will be overwriten in next build. I thinks we should fix kotlin-extension publication. Will take a look

[altavir]

It seems a bit strange since I do not use core-js directly. It is used internally by kotlin-extension. If it has wrong configuration, it should fail to build. By the way, the module itself should be supported better or even included in stdlib. I has a lot of useful things. It uses only one function from core-js. Maybe it is better to rewrite it in kotlin?

[snrostov]

since I do not use core-js directly.

You have api(npm("core-js")) in https://github.com/mipt-npm/dataforge-vis/blob/9f157a80b9352631e423507bf16d714618d2560d/dataforge-vis-common/build.gradle.kts#L23

If you remove this line, only one version will remain, but it comes from babel and karma, not kotlin-extension. So, yes, the root bug is that kotlin-extension is not published correctly.

[altavir]

I have it because it does not work without it. Sadly, it does not work with it either.