Hello guys, with the latest Node.js v22 release, WasmGC is enable by default. With that said, code l...

# webassembly

[Guilherme Delgado]

Hello guys, with the latest Node.js v22 release, WasmGC is enable by default. With that said, code like:

rootProject.extensions.findByType<NodeJsRootExtension>()?.apply {
    version = "v22.0.0-v8-canary20240219209428711c"
    downloadBaseUrl = "<https://nodejs.org/download/v8-canary>"
}

can be removed. I’ve Node.js 22 installed:

➜ ~ node -v
v22.0.0
➜ ~ npm -v 
10.5.1

But if I run my wasm target, inside user/.gradle/nodejs folder, I’ll find node-v20.10.0-darwin-arm64 instead of node-v22.0.0-darwin-arm64 which only gets installed if I specify it:

rootProject.extensions.findByType<org.jetbrains.kotlin.gradle.targets.js.nodejs.NodeJsRootExtension>()?.apply {
    version = "22.0.0"
}

So, which default setting (wasmJsBrowserDevelopmentRun?) is responsible for using Node.js v20 instead of system version? @bashor any idea?

[Artem Kobzar]

So, the extension is responsible for the Node version:

rootProject.extensions.findByType<NodeJsRootExtension>()?.apply {
    version = ...
}

By default we are using Node.js 20, but it's only for right now, we are working on the migration to v22

[bashor]

Also, might be useful
https://kotlinlang.slack.com/archives/CDFP59223/p1714082534189089?thread_ts=1713990426.976899&cid=CDFP59223
https://kotlinlang.slack.com/archives/CDFP59223/p1714082549983549?thread_ts=1713990426.976899&cid=CDFP59223

[Guilherme Delgado]

Btw, shouldn’t the download option be false by default and system node version used instead, and only download if not compatible with Wasm or if inexistent? 🤔

[bashor]

cc @Ilya Goncharov [JB]