René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"[5.5 beta] package.json `\"type\"` lookup in non-Node.js `module` is unexpected","articleBody":"### 🔎 Search Terms\n\nmoduleDetection force legacy\n\n### 🕗 Version \u0026 Regression Information\n\n- This changed in version 5.5-beta\n\n### ⏯ Playground Link\n\n_No response_\n\n### 💻 Code\n\npackage.json:\r\n```json\r\n{\r\n  \"name\": \"ts-test\",\r\n  \"version\": \"1.0.0\",\r\n  \"description\": \"\",\r\n  \"type\": \"commonjs\",\r\n  \"devDependencies\": {\r\n    \"typescript\": \"^5.5.0-beta\"\r\n  }\r\n}\r\n```\r\ntsconfig.json:\r\n```ts\r\n{\r\n  \"include\": [\"src/index.ts\"],\r\n  \"compilerOptions\": {\r\n    \"module\": \"Preserve\",\r\n    \"verbatimModuleSyntax\": true,\r\n    \"moduleDetection\": \"force\",\r\n    \"emitDeclarationOnly\": true,\r\n    \"declaration\": true,\r\n    \"declarationDir\": \"./dts\"\r\n  }\r\n}\r\n```\r\nsrc/index.ts:\r\n```ts\r\nexport let a = 1;\r\n```\n\n### 🙁 Actual behavior\n\n```\r\nsrc/index.ts:1:1 - error TS1287: A top-level 'export' modifier cannot be used on value declarations in a CommonJS module when 'verbatimModuleSyntax' is enabled.\r\n\r\n1 export let a = 1;\r\n```\n\n### 🙂 Expected behavior\n\nGiven that I'm using `\"moduleDetection\": \"force\"`, that file is an ES module (regardless of what `package.json#type` says) and thus I shouldn't see that error. This was the behavior in 5.4.\n\n### Additional information about the issue\n\n_No response_","author":{"url":"https://github.com/nicolo-ribaudo","@type":"Person","name":"nicolo-ribaudo"},"datePublished":"2024-05-26T11:56:57.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":11},"url":"https://github.com/58663/TypeScript/issues/58663"}