stdium.playground

test262 100% · 53,284 tests

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stdium is a JavaScript engine written in Rust (zero dependencies), compiled here to WebAssembly. Every run starts from a fresh realm. ⌘+Enter runs. Browser-build limits: generators and async/await throw for now (stdium's coroutines run on OS threads, which wasm doesn't have) — promises and everything else work; Math.random() is deterministic.