JavaScriptCore is a constituent part of WebKit, which is pretty much available on washer-dryers these days. But the macOS/iOS/etcOS framework part of JavaScript

JavaScriptCore is a constituent part of WebKit, which is pretty much available on washer-dryers these days. But the macOS/iOS/etcOS framework part of JavaScriptCore that adds Objective-C/Swift layers is only available for those platforms, yes: https://developer.apple.com/documentation/javascriptcore https://developer.apple.com/documentation/javascriptcore