94395
##### 質問内容

提示コードの`///`コメント部内部のコードの最上部の`import`文ですが`npx tsc -w
`コマンドを実行して動作を確認すると以下のエラーが出るのですが原因がわかりません。調べてると`module`や`target`等を変更するようですが  
変更してもエラーが出ます。これは何をどう変更させればいいのでしょうか？

##### 試したこと

1,参考サイトBにように`<script>`タグに`tpye="module"`と設定するとエラーが以下のようになります。`TypeError:
Failed to resolve module specifier "fs". Relative references must start with
either "/", "./", or "../".`  
2,`tsconfig`の`module,target`を色々変更

##### Error

```

    Uncaught SyntaxError: Cannot use import statement outside a module (at script.js:2:1)
    
```

##### 参考サイト

A：https://stackoverflow.com/questions/58211880/uncaught-syntaxerror-cannot-
use-import-statement-outside-a-module-when-import

B：https://flaviocopes.com/fix-cannot-use-import-outside-module/

##### tsconfig

```

    {
      "compilerOptions": {
        
        "allowJs": true,
        /* Visit https://aka.ms/tsconfig to read more about this file */
       //"allowJs": true,
        /* Projects */
        // "incremental": true,                              /* Save .tsbuildinfo files to allow for incremental compilation of projects. */
        // "composite": true,                                /* Enable constraints that allow a TypeScript project to be used with project references. */
        // "tsBuildInfoFile": "./.tsbuildinfo",              /* Specify the path to .tsbuildinfo incremental compilation file. */
        // "disableSourceOfProjectReferenceRedirect": true,  /* Disable preferring source files instead of declaration files when referencing composite projects. */
        // "disableSolutionSearching": true,                 /* Opt a project out of multi-project reference checking when editing. */
        // "disableReferencedProjectLoad": true,             /* Reduce the number of projects loaded automatically by TypeScript. */
    
        /* Language and Environment */
        "target": "ES2022",                                  /* Set the JavaScript language version for emitted JavaScript and include compatible library declarations. */
        // "lib": [],                                        /* Specify a set of bundled library declaration files that describe the target runtime environment. */
        // "jsx": "preserve",                                /* Specify what JSX code is generated. */
        // "experimentalDecorators": true,                   /* Enable experimental support for legacy experimental decorators. */
        // "emitDecoratorMetadata": true,                    /* Emit design-type metadata for decorated declarations in source files. */
        // "jsxFactory": "",                                 /* Specify the JSX factory function used when targeting React JSX emit, e.g. 'React.createElement' or 'h'. */
        // "jsxFragmentFactory": "",                         /* Specify the JSX Fragment reference used for fragments when targeting React JSX emit e.g. 'React.Fragment' or 'Fragment'. */
        // "jsxImportSource": "",                            /* Specify module specifier used to import the JSX factory functions when using 'jsx: react-jsx*'. */
        // "reactNamespace": "",                             /* Specify the object invoked for 'createElement'. This only applies when targeting 'react' JSX emit. */
        // "noLib": true,                                    /* Disable including any library files, including the default lib.d.ts. */
        // "useDefineForClassFields": true,                  /* Emit ECMAScript-standard-compliant class fields. */
        // "moduleDetection": "auto",                        /* Control what method is used to detect module-format JS files. */
    
        "allowSyntheticDefaultImports": true,
        //"esModuleInterop": true,
    
        /* Modules */
        //"lib": ["es2020"],
        //"module": "commonjs",                                /* Specify what module code is generated. */
        "module": "ESNext",                                /* Specify what module code is generated. */
        //"module": "amd",                                /* Specify what module code is generated. */
        //"rootDir": "./",                                  /* Specify the root folder within your source files. */
        // "moduleResolution": "node10",                     /* Specify how TypeScript looks up a file from a given module specifier. */
        // "baseUrl": "./",                                  /* Specify the base directory to resolve non-relative module names. */
        // "paths": {},                                      /* Specify a set of entries that re-map imports to additional lookup locations. */
        // "rootDirs": [],                                   /* Allow multiple folders to be treated as one when resolving modules. */
        // "typeRoots": [],                                  /* Specify multiple folders that act like './node_modules/@types'. */
        // "types": [],                                      /* Specify type package names to be included without being referenced in a source file. */
        // "allowUmdGlobalAccess": true,                     /* Allow accessing UMD globals from modules. */
        // "moduleSuffixes": [],                             /* List of file name suffixes to search when resolving a module. */
        // "allowImportingTsExtensions": true,               /* Allow imports to include TypeScript file extensions. Requires '--moduleResolution bundler' and either '--noEmit' or '--emitDeclarationOnly' to be set. */
        // "resolvePackageJsonExports": true,                /* Use the package.json 'exports' field when resolving package imports. */
        // "resolvePackageJsonImports": true,                /* Use the package.json 'imports' field when resolving imports. */
        // "customConditions": [],                           /* Conditions to set in addition to the resolver-specific defaults when resolving imports. */
        // "resolveJsonModule": true,                        /* Enable importing .json files. */
        // "allowArbitraryExtensions": true,                 /* Enable importing files with any extension, provided a declaration file is present. */
        // "noResolve": true,                                /* Disallow 'import's, 'require's or '<reference>'s from expanding the number of files TypeScript should add to a project. */
    
        /* JavaScript Support */
        // "allowJs": true,                                  /* Allow JavaScript files to be a part of your program. Use the 'checkJS' option to get errors from these files. */
        // "checkJs": true,                                  /* Enable error reporting in type-checked JavaScript files. */
        // "maxNodeModuleJsDepth": 1,                        /* Specify the maximum folder depth used for checking JavaScript files from 'node_modules'. Only applicable with 'allowJs'. */
    
        /* Emit */
        // "declaration": true,                              /* Generate .d.ts files from TypeScript and JavaScript files in your project. */
        // "declarationMap": true,                           /* Create sourcemaps for d.ts files. */
        // "emitDeclarationOnly": true,                      /* Only output d.ts files and not JavaScript files. */
        // "sourceMap": true,                                /* Create source map files for emitted JavaScript files. */
        // "inlineSourceMap": true,                          /* Include sourcemap files inside the emitted JavaScript. */
        // "outFile": "./",                                  /* Specify a file that bundles all outputs into one JavaScript file. If 'declaration' is true, also designates a file that bundles all .d.ts output. */
        // "outDir": "./",                                   /* Specify an output folder for all emitted files. */
        // "removeComments": true,                           /* Disable emitting comments. */
        // "noEmit": true,                                   /* Disable emitting files from a compilation. */
        // "importHelpers": true,                            /* Allow importing helper functions from tslib once per project, instead of including them per-file. */
        // "importsNotUsedAsValues": "remove",               /* Specify emit/checking behavior for imports that are only used for types. */
        // "downlevelIteration": true,                       /* Emit more compliant, but verbose and less performant JavaScript for iteration. */
        // "sourceRoot": "",                                 /* Specify the root path for debuggers to find the reference source code. */
        // "mapRoot": "",                                    /* Specify the location where debugger should locate map files instead of generated locations. */
        // "inlineSources": true,                            /* Include source code in the sourcemaps inside the emitted JavaScript. */
        // "emitBOM": true,                                  /* Emit a UTF-8 Byte Order Mark (BOM) in the beginning of output files. */
        // "newLine": "crlf",                                /* Set the newline character for emitting files. */
        // "stripInternal": true,                            /* Disable emitting declarations that have '@internal' in their JSDoc comments. */
        // "noEmitHelpers": true,                            /* Disable generating custom helper functions like '__extends' in compiled output. */
        // "noEmitOnError": true,                            /* Disable emitting files if any type checking errors are reported. */
        // "preserveConstEnums": true,                       /* Disable erasing 'const enum' declarations in generated code. */
        // "declarationDir": "./",                           /* Specify the output directory for generated declaration files. */
        // "preserveValueImports": true,                     /* Preserve unused imported values in the JavaScript output that would otherwise be removed. */
    
        /* Interop Constraints */
        // "isolatedModules": true,                          /* Ensure that each file can be safely transpiled without relying on other imports. */
        // "verbatimModuleSyntax": true,                     /* Do not transform or elide any imports or exports not marked as type-only, ensuring they are written in the output file's format based on the 'module' setting. */
        // "allowSyntheticDefaultImports": true,             /* Allow 'import x from y' when a module doesn't have a default export. */
        "esModuleInterop": true,                             /* Emit additional JavaScript to ease support for importing CommonJS modules. This enables 'allowSyntheticDefaultImports' for type compatibility. */
        // "preserveSymlinks": true,                         /* Disable resolving symlinks to their realpath. This correlates to the same flag in node. */
        "forceConsistentCasingInFileNames": true,            /* Ensure that casing is correct in imports. */
    
        /* Type Checking */
        "strict": true,                                      /* Enable all strict type-checking options. */
        // "noImplicitAny": true,                            /* Enable error reporting for expressions and declarations with an implied 'any' type. */
        // "strictNullChecks": true,                         /* When type checking, take into account 'null' and 'undefined'. */
        // "strictFunctionTypes": true,                      /* When assigning functions, check to ensure parameters and the return values are subtype-compatible. */
        // "strictBindCallApply": true,                      /* Check that the arguments for 'bind', 'call', and 'apply' methods match the original function. */
        // "strictPropertyInitialization": true,             /* Check for class properties that are declared but not set in the constructor. */
        // "noImplicitThis": true,                           /* Enable error reporting when 'this' is given the type 'any'. */
        // "useUnknownInCatchVariables": true,               /* Default catch clause variables as 'unknown' instead of 'any'. */
        // "alwaysStrict": true,                             /* Ensure 'use strict' is always emitted. */
        // "noUnusedLocals": true,                           /* Enable error reporting when local variables aren't read. */
        // "noUnusedParameters": true,                       /* Raise an error when a function parameter isn't read. */
        // "exactOptionalPropertyTypes": true,               /* Interpret optional property types as written, rather than adding 'undefined'. */
        // "noImplicitReturns": true,                        /* Enable error reporting for codepaths that do not explicitly return in a function. */
        // "noFallthroughCasesInSwitch": true,               /* Enable error reporting for fallthrough cases in switch statements. */
        // "noUncheckedIndexedAccess": true,                 /* Add 'undefined' to a type when accessed using an index. */
        // "noImplicitOverride": true,                       /* Ensure overriding members in derived classes are marked with an override modifier. */
        // "noPropertyAccessFromIndexSignature": true,       /* Enforces using indexed accessors for keys declared using an indexed type. */
        // "allowUnusedLabels": true,                        /* Disable error reporting for unused labels. */
        // "allowUnreachableCode": true,                     /* Disable error reporting for unreachable code. */
    
        /* Completeness */
        // "skipDefaultLibCheck": true,                      /* Skip type checking .d.ts files that are included with TypeScript. */
        "skipLibCheck": true                                 /* Skip type checking all .d.ts files. */
      }
    }
    
    
```

##### ソースコード

```

    //////////////////////////////
    import fs from "fs";
    //////////////////////////////
    // 月の最後の日を取得
    function GetLastDay(year:number,month:number)
    {
        let d = new Date(year,month);
        return d.getDate();
    }
    
    //曜日を取得
    function GetDayOfWeek(year:number,month:number,day:number)
    {
        let week = ["日", "月", "火", "水", "木", "金", "土"];  
    
        let d = new Date(year,(month + 1),day + 2);
    
        return week[d.getDay()];
    }
    
    
    /*########################################################################
    # 要素　作成
    ##########################################################################*/
    function CreateElement(elementName:string,text:string,className:string)
    { 
        let e = document.createElement(elementName);
        e.textContent = text;
        e.className = className;
    
        return e;
    }
    
    /*########################################################################
    # ポップアップウインドウを表示
    ##########################################################################*/
    function PopUpWindowShow_Event()
    {    
        //dialog?.showModal();    
    }
    
    /////////////////////////////////////////////////////////
    console.log(fs.readFileSync("./WorkData.html"));
    /////////////////////////////////////////////////////////
    
    let div = document.getElementsByClassName("workData_js");
    //div[0].innerHTML = fil;
    
    
    /*
    var dialog = document.querySelector("dialog");
    var btn_close = document.getElementById("modal_Close");
    
    btn_close?.addEventListener('click',function()
    {
        console.log("close");
        dialog!.open = false;
    
        dialog?.close();
        console.log("end");
        
    },false);
    */
    
    
```
CC BY-SA 4.0
2023-04-01T01:55:21.597
94392
2023-04-03T00:05:14.530
55177
question
typescript
Error: Cannot use import statement outside a module の対処方法が知りたい
以前の質問「[Error: [ Uncaught TypeError: _fs.readFile is not a function
]の原因が知りたい](https://ja.stackoverflow.com/questions/94312/error-uncaught-
typeerror-fs-readfile-is-not-a-
function-%e3%81%ae%e5%8e%9f%e5%9b%a0%e3%81%8c%e7%9f%a5%e3%82%8a%e3%81%9f%e3%81%84)」と理由は同じです。ブラウザで実行するコードでは
fs は使えません。

`fetch()` や XHR などで HTTPS 経由でデータを取得しましょう。
CC BY-SA 4.0
2023-04-03T00:05:14.530
94395
2023-04-03T00:05:14.530
3475
94392
answer