Deno 1.42 introduces critical upgrades aimed at enhancing Node.js and NPM compatibility. Key improvements include support for EventEmitterAsyncResource and AsyncLocalStorage in the async_hooks module, and expanded functionality in the crypto module, featuring new APIs and additional curve support. The worker_threads module has undergone a comprehensive overhaul. Notably, the update addresses a flaw in the deno run --check process, which previously allowed some type-checking to occur during execution, potentially leading to runtime failures. Deno developers recommend using the deno check subcommand for better type verification. Moreover, users can expect a 10% performance boost in startup time on Linux due to optimizations.
Deno 1.42 includes major updates for Node.js and NPM compatibility, enhancing modules such as async_hooks, crypto, and worker_threads for improved performance.
The latest version resolves a crucial issue with the deno run --check command, preventing incomplete type-checking and offering better error handling to developers.
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