René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"[REPL] Cannot declare variables under strict-mode when used along --experimental-top-level-await","articleBody":"\u003c!--\r\nThank you for reporting an issue.\r\n\r\nThis issue tracker is for bugs and issues found within Node.js core.\r\nIf you require more general support please file an issue on our help\r\nrepo. https://github.com/nodejs/help\r\n\r\n\r\nPlease fill in as much of the template below as you're able.\r\n\r\nVersion: output of `node -v`\r\nPlatform: output of `uname -a` (UNIX), or output of `\"$([Environment]::OSVersion | ForEach-Object VersionString) $(if ([Environment]::Is64BitOperatingSystem) { \"x64\" } else { \"x86\" })\"` in PowerShell console (Windows)\r\nSubsystem: if known, please specify affected core module name\r\n--\u003e\r\n\r\n* **Version**: v16.4.1\r\n* **Platform**: Archlinux\r\n* **Subsystem**: N/A\r\n\r\n### What steps will reproduce the bug?\r\n\r\n\u003c!--\r\nEnter details about your bug, preferably a simple code snippet that can be\r\nrun using `node` directly without installing third-party dependencies.\r\n--\u003e\r\n- run node with: `node --use_strict --experimental-repl-await`\r\n- enter: `const x = await 1;`\r\n- receive:\r\n```\r\nUncaught ReferenceError: x is not defined\r\n    at REPL1:1:24\r\n    at processTicksAndRejections (node:internal/process/task_queues:96:5)\r\n```\r\n\r\n### How often does it reproduce? Is there a required condition?\r\n\r\n100%\r\n\r\n### What is the expected behavior?\r\n\r\n\u003c!--\r\nIf possible please provide textual output instead of screenshots.\r\n--\u003e\r\nIt shouldn't throw error, or if this is not supported then it should error out before starting repl.\r\n\r\n### What do you see instead?\r\n\r\n\u003c!--\r\nIf possible please provide textual output instead of screenshots.\r\n--\u003e\r\n\r\nError is thrown\r\n\r\n### Additional information\r\n\r\n\u003c!--\r\nTell us anything else you think we should know.\r\n--\u003e\r\n\r\nThis is related to handling in https://github.com/nodejs/node/blob/c2e6822153bad023ab7ebd30a6117dcc049e475c/lib/internal/repl/await.js#L53-L74\r\n\r\nas it's replacing `const` with `void ($exp)` without any flag to omit if running in strict mode.\r\n\r\nThis was noticed when trying to implement TLA in repl for [ts-node](https://github.com/TypeStrong/ts-node/pull/1383).\r\n","author":{"url":"https://github.com/ejose19","@type":"Person","name":"ejose19"},"datePublished":"2021-07-04T18:27:07.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":5},"url":"https://github.com/39259/node/issues/39259"}