docs: document deno eval CJS/ESM auto-detection (2.8)#3091
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docs: document deno eval CJS/ESM auto-detection (2.8)#3091lunadogbot wants to merge 1 commit intodenoland:mainfrom
deno eval CJS/ESM auto-detection (2.8)#3091lunadogbot wants to merge 1 commit intodenoland:mainfrom
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Replaces the vague "CommonJS support" section in eval.md with a description of the new 2.8 heuristic — import/export declarations select ESM, otherwise CJS. Adds a side-by-side example and notes \`--ext=mjs\` / \`--ext=cjs\` as the override. Refs denoland/deno#32472
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Summary
Documents the new CJS/ESM auto-detection heuristic in
deno evalshipping in Deno 2.8 (denoland/deno#32472).deno evalparses the snippet, treats it as ESM if it containsimport/exportdeclarations, and otherwise runs it as CommonJS — sorequire()works without--ext=cjs.runtime/reference/cli/eval.mdwith "CommonJS and ESM auto-detection".--ext=mjs/--ext=cjsas the override when the heuristic gets it wrong.Test plan
deno task serve— section renders, examples readable.