使用带有 Node.js 错误的 Typescript
Using Typescript with Node.js error
我正在使用 Visual Studio 代码 在 Win8 中使用 node.js 创建一个基于打字稿的应用程序。
我按照此处的说明创建了一个 Typescript 项目：https://basarat.gitbooks.io/typescript/docs/quick/nodejs.html
但是，在执行 npm start 时（我的目标是 index.ts，会抛出语法错误）
index.ts 文件:
let Myname: string = "World Lease";
它抛出 "Unexpected token : " 错误并且没有创建 JS 文件。 console.logs 工作，但仍然没有发出 js 文件。
附上我的 tsconfig.json 和 package.json 文件。
tsconfig.json:
{
"compilerOptions": {
/* Basic Options */
"target": "es5",
/* Specify ECMAScript target version: 'ES3' (default), 'ES5', 'ES2015', 'ES2016', 'ES2017', or 'ESNEXT'. */
"module": "commonjs",
/* Specify module code generation: 'commonjs', 'amd', 'system', 'umd', 'es2015', or 'ESNext'. */
// "lib": [], /* Specify library files to be included in the compilation: */
// "allowJs": true, /* Allow javascript files to be compiled. */
// "checkJs": true, /* Report errors in .js files. */
// "jsx": "preserve", /* Specify JSX code generation: 'preserve', 'react-native', or 'react'. */
// "declaration": true, /* Generates corresponding '.d.ts' file. */
// "sourceMap": true, /* Generates corresponding '.map' file. */
// "outFile": "./", /* Concatenate and emit output to single file. */
// "outDir": "./", /* Redirect output structure to the directory. */
// "rootDir": "./", /* Specify the root directory of input files. Use to control the output directory structure with --outDir. */
// "removeComments": true, /* Do not emit comments to output. */
// "noEmit": true, /* Do not emit outputs. */
// "importHelpers": true, /* Import emit helpers from 'tslib'. */
// "downlevelIteration": true, /* Provide full support for iterables in 'for-of', spread, and destructuring when targeting 'ES5' or 'ES3'. */
// "isolatedModules": true, /* Transpile each file as a separate module (similar to 'ts.transpileModule'). */
/* Strict Type-Checking Options */
"strict": true,
/* Enable all strict type-checking options. */
// "noImplicitAny": true, /* Raise error on expressions and declarations with an implied 'any' type. */
// "strictNullChecks": true, /* Enable strict null checks. */
// "noImplicitThis": true, /* Raise error on 'this' expressions with an implied 'any' type. */
// "alwaysStrict": true, /* Parse in strict mode and emit "use strict" for each source file. */
/* Additional Checks */
// "noUnusedLocals": true, /* Report errors on unused locals. */
// "noUnusedParameters": true, /* Report errors on unused parameters. */
// "noImplicitReturns": true, /* Report error when not all code paths in function return a value. */
// "noFallthroughCasesInSwitch": true, /* Report errors for fallthrough cases in switch statement. */
/* Module Resolution Options */
// "moduleResolution": "node", /* Specify module resolution strategy: 'node' (Node.js) or 'classic' (TypeScript pre-1.6). */
// "baseUrl": "./", /* Base directory to resolve non-absolute module names. */
// "paths": {}, /* A series of entries which re-map imports to lookup locations relative to the 'baseUrl'. */
// "rootDirs": [], /* List of root folders whose combined content represents the structure of the project at runtime. */
"typeRoots": ["node_modules/@types"] /* List of folders to include type definitions from. */
// "types": [], /* Type declaration files to be included in compilation. */
// "allowSyntheticDefaultImports": true, /* Allow default imports from modules with no default export. This does not affect code emit, just typechecking. */
/* Source Map Options */
// "sourceRoot": "./", /* Specify the location where debugger should locate TypeScript files instead of source locations. */
// "mapRoot": "./", /* Specify the location where debugger should locate map files instead of generated locations. */
// "inlineSourceMap": true, /* Emit a single file with source maps instead of having a separate file. */
// "inlineSources": true, /* Emit the source alongside the sourcemaps within a single file; requires '--inlineSourceMap' or '--sourceMap' to be set. */
/* Experimental Options */
// "experimentalDecorators": true, /* Enables experimental support for ES7 decorators. */
// "emitDecoratorMetadata": true, /* Enables experimental support for emitting type metadata for decorators. */
}
}
package.json:
{
"name": "learntool",
"version": "1.0.0",
"description": "",
"main": "index.ts",
"scripts": {
"start": "npm run build:live",
"build:live": "nodemon --exec \node_modules\bin\ts-node -- index.ts"
},
"keywords": [],
"author": "",
"license": "ISC",
"devDependencies": {
"@types/node": "^8.0.9",
"nodemon": "^1.11.0",
"ts-node": "^3.2.0",
"typescript": "^2.4.1"
}
}
请注意上面代码段中的 build:live 行。因为我使用 Windows.
，所以它已从指定的更改。
您可以尝试将 exclude 添加到您的 tsconfig.json 中吗，例如：
{
"compilerOptions": {
"module": "commonjs",
"target": "es5",
},
"exclude": [
"node_modules/"
]
}
仔细检查您的安装后脚本。在我复制你的代码后，运行 npm install，我也遇到语法错误，但我注意到这一行：
"build:live": "nodemon --exec \node_modules\bin\ts-node -- index.ts"
...并决定手动 运行 每个组件。 tsc-node 不在 bin 中，而是在 .bin 中，所以我将行更改为：
"build:live": "nodemon --exec \node_modules\.bin\ts-node -- index.ts"
...开始 运行ning。
我正在使用 Visual Studio 代码 在 Win8 中使用 node.js 创建一个基于打字稿的应用程序。
我按照此处的说明创建了一个 Typescript 项目：https://basarat.gitbooks.io/typescript/docs/quick/nodejs.html
但是，在执行 npm start 时（我的目标是 index.ts，会抛出语法错误）
index.ts 文件:
let Myname: string = "World Lease";
它抛出 "Unexpected token : " 错误并且没有创建 JS 文件。 console.logs 工作，但仍然没有发出 js 文件。
附上我的 tsconfig.json 和 package.json 文件。
tsconfig.json:
{
"compilerOptions": {
/* Basic Options */
"target": "es5",
/* Specify ECMAScript target version: 'ES3' (default), 'ES5', 'ES2015', 'ES2016', 'ES2017', or 'ESNEXT'. */
"module": "commonjs",
/* Specify module code generation: 'commonjs', 'amd', 'system', 'umd', 'es2015', or 'ESNext'. */
// "lib": [], /* Specify library files to be included in the compilation: */
// "allowJs": true, /* Allow javascript files to be compiled. */
// "checkJs": true, /* Report errors in .js files. */
// "jsx": "preserve", /* Specify JSX code generation: 'preserve', 'react-native', or 'react'. */
// "declaration": true, /* Generates corresponding '.d.ts' file. */
// "sourceMap": true, /* Generates corresponding '.map' file. */
// "outFile": "./", /* Concatenate and emit output to single file. */
// "outDir": "./", /* Redirect output structure to the directory. */
// "rootDir": "./", /* Specify the root directory of input files. Use to control the output directory structure with --outDir. */
// "removeComments": true, /* Do not emit comments to output. */
// "noEmit": true, /* Do not emit outputs. */
// "importHelpers": true, /* Import emit helpers from 'tslib'. */
// "downlevelIteration": true, /* Provide full support for iterables in 'for-of', spread, and destructuring when targeting 'ES5' or 'ES3'. */
// "isolatedModules": true, /* Transpile each file as a separate module (similar to 'ts.transpileModule'). */
/* Strict Type-Checking Options */
"strict": true,
/* Enable all strict type-checking options. */
// "noImplicitAny": true, /* Raise error on expressions and declarations with an implied 'any' type. */
// "strictNullChecks": true, /* Enable strict null checks. */
// "noImplicitThis": true, /* Raise error on 'this' expressions with an implied 'any' type. */
// "alwaysStrict": true, /* Parse in strict mode and emit "use strict" for each source file. */
/* Additional Checks */
// "noUnusedLocals": true, /* Report errors on unused locals. */
// "noUnusedParameters": true, /* Report errors on unused parameters. */
// "noImplicitReturns": true, /* Report error when not all code paths in function return a value. */
// "noFallthroughCasesInSwitch": true, /* Report errors for fallthrough cases in switch statement. */
/* Module Resolution Options */
// "moduleResolution": "node", /* Specify module resolution strategy: 'node' (Node.js) or 'classic' (TypeScript pre-1.6). */
// "baseUrl": "./", /* Base directory to resolve non-absolute module names. */
// "paths": {}, /* A series of entries which re-map imports to lookup locations relative to the 'baseUrl'. */
// "rootDirs": [], /* List of root folders whose combined content represents the structure of the project at runtime. */
"typeRoots": ["node_modules/@types"] /* List of folders to include type definitions from. */
// "types": [], /* Type declaration files to be included in compilation. */
// "allowSyntheticDefaultImports": true, /* Allow default imports from modules with no default export. This does not affect code emit, just typechecking. */
/* Source Map Options */
// "sourceRoot": "./", /* Specify the location where debugger should locate TypeScript files instead of source locations. */
// "mapRoot": "./", /* Specify the location where debugger should locate map files instead of generated locations. */
// "inlineSourceMap": true, /* Emit a single file with source maps instead of having a separate file. */
// "inlineSources": true, /* Emit the source alongside the sourcemaps within a single file; requires '--inlineSourceMap' or '--sourceMap' to be set. */
/* Experimental Options */
// "experimentalDecorators": true, /* Enables experimental support for ES7 decorators. */
// "emitDecoratorMetadata": true, /* Enables experimental support for emitting type metadata for decorators. */
}
}
package.json:
{
"name": "learntool",
"version": "1.0.0",
"description": "",
"main": "index.ts",
"scripts": {
"start": "npm run build:live",
"build:live": "nodemon --exec \node_modules\bin\ts-node -- index.ts"
},
"keywords": [],
"author": "",
"license": "ISC",
"devDependencies": {
"@types/node": "^8.0.9",
"nodemon": "^1.11.0",
"ts-node": "^3.2.0",
"typescript": "^2.4.1"
}
}
请注意上面代码段中的 build:live 行。因为我使用 Windows.
，所以它已从指定的更改。您可以尝试将 exclude 添加到您的 tsconfig.json 中吗，例如：
{
"compilerOptions": {
"module": "commonjs",
"target": "es5",
},
"exclude": [
"node_modules/"
]
}
仔细检查您的安装后脚本。在我复制你的代码后，运行 npm install，我也遇到语法错误，但我注意到这一行：
"build:live": "nodemon --exec \node_modules\bin\ts-node -- index.ts"
...并决定手动 运行 每个组件。 tsc-node 不在 bin 中，而是在 .bin 中，所以我将行更改为：
"build:live": "nodemon --exec \node_modules\.bin\ts-node -- index.ts"
...开始 运行ning。