James M. Snell is a core contributor to Node.js, a member of its Technical Steering Committee, and a delegate on TC-39, the committee that defines JavaScript. As a senior principal engineer on the Cloudflare Workers runtime, he is a leading expert on the internals of JavaScript and its runtimes.

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• 1 WHEN A HELLO ISN'T HELLO 2 STRINGS 3 NUMBERS 4 PRIMITIVES, COERCION, AND EQUALITY 5 OBJECTS  6 FUNCTIONS 7 ERRORS 7.6 SUMMARY 8 SCHEDULING 9 GARBAGE COLLECTION 10 MODULES 11 TRACING AND DIAGNOSTICS 12 WORKER THREADS AND WEB WORKERS 13 FETCH 14 CRYPTOGRAPHY 15 STREAMS 16 STANDARDS 17 TRICKS AND TREATS (OR STUFF ALONG THE WAY THAT DIDN'T FIT ANYWHERE ELSE)