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{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Root level for-loop's variables are transpiled to global variables","articleBody":"When for-loop is located at root level of the file, it's variables from initializer are global\nBut when I add any level (empty brackets or a function) they're being local\n\n[Example](https://typescripttolua.github.io/play/#code/5.4/PTAEFUDsGMHsFt4FNIBdQCMBOBDaBrJVAZ1FVlHh0NAAMA3HAG1tCdmmYCgRQBvLqCGgAZrCygAFEyKhGTUAF5QABgDcc5qAA8oAEwaA1IfkBKUAAcsASzSSzawcKu3UkgOQAxcW1iwLoCgAJu6mXE5CvADKABawAK5MQZhIoJDWTAA0mPHotkFISMnW6C5opABEehURljZ2ZjxgAL5AA):\n\n```ts\n// Uncomment brackets to make `val` local\n// {\n    for (let val = 0; val \u003c 2; ++val) print(val);\n    print('For loop end')\n\n    // Should be nil, but indeed it prints \"2\"\n    print(val)\n// }\n```\n\n```lua\n--[[ Generated with https://github.com/TypeScriptToLua/TypeScriptToLua ]]\ndo\n    val = 0 -- here \"local\" keyword missing is\n    while val \u003c 2 do\n        print(val)\n        val = val + 1\n    end\nend\nprint(\"For loop end\")\nprint(val)\n```","author":{"url":"https://github.com/inklesspen1rus","@type":"Person","name":"inklesspen1rus"},"datePublished":"2025-05-09T13:58:44.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":2},"url":"https://github.com/1631/TypeScriptToLua/issues/1631"}