tsconfig.json是TypeScript编译器的配置文件，用于指定编译TypeScript代码时的编译选项和编译目标等信息。通过修改该文件，可以定制TypeScript编译器的行为，例如指定编译目标、启用或禁用特定的语言特性、设置代码检查规则等。
以下是一些常用的tsconfig.json选项（12个）：
-
compilerOptions：编译器选项，用于配置TypeScript编译器的行为，包括指定目标JS版本、模块化方式、输出目录、是否生成source map等。 -
files：指定需要编译的文件列表，可以是相对或绝对路径。 -
include：包含需要编译的文件的glob路径模式。 -
exclude：排除不需要编译的文件的glob路径模式。 -
extends：用于扩展其他tsconfig.json配置，可以被配置文件继承。 -
compileOnSave：是否在保存文件时自动编译。 -
references：使用项目引用，可以将一个项目作为另一个项目的依赖。 -
typeAcquisition：自动获取类型声明的设置。 -
angularCompilerOptions：帮助编译Angular应用程序的特殊编译器选项。 -
excludeDirectories：确定不应该被搜索的顶级目录。 -
excludeFiles：指定应该被忽略的文件。 -
includeDirectories：包含需要编译的文件的目录列表。
通过在项目根目录下创建tsconfig.json文件，并配置以上选项，可以定制TypeScript编译器的行为，以满足项目的需求。
compilerOptions
{
"compilerOptions": {
/* Visit https://aka.ms/tsconfig to read more about this file */
/* Projects */
// "incremental": true, /* 保存.tsbuildinfo文件以允许增量编译项目。*/
// "composite": true, /* 启用允许TypeScript项目与项目引用一起使用的约束。*/
// "tsBuildInfoFile": "./.tsbuildinfo", /* 指定.tsbuildinfo增量编译文件的路径。 */
// "disableSourceOfProjectReferenceRedirect": true, /* 在引用复合项目时，禁用首选源文件而不是声明文件。 */
// "disableSolutionSearching": true, /* 编辑时将项目从多项目参照检查中选择出来。 */
// "disableReferencedProjectLoad": true, /* 减少TypeScript自动加载的项目数量。 */
/* Language and Environment */
"target": "es2016", /* 指定编译后的 JavaScript 代码的目标版本。可选值包括 "es3"、"es5"、"es6"、"es2015"、"es2016"、"es2017"、"es2018"、"es2019"、"es2020"、"es2021"、"esnext"。默认值为 "es3"。 */
// "lib": [], /* 指定一组描述目标运行时环境的绑定库声明文件。*/
// "jsx": "preserve", /* 指定 JSX 的处理方式。可选值包括 "preserve"、"react"、"react-jsx"、"react-jsxdev"、"react-native"。默认值为 "preserve"。 */
// "experimentalDecorators": true, /*启用对遗留实验性装饰器的实验性支持。 */
// "emitDecoratorMetadata": true, /* 为源文件中的修饰声明发出设计类型元数据。 */
// "jsxFactory": "", /* 指定针对React JSX emit时使用的JSX工厂函数，例如“React.createElement”或“h”。 */
// "jsxFragmentFactory": "", /* 指定针对React JSX发射的片段时用于片段的JSX片段引用，例如“React.Fraggment”或“Fragment”。 */
// "jsxImportSource": "", /*指定在使用“JSX:areact JSX*”时用于导入JSX工厂函数的模块说明符。 */
// "reactNamespace": "", /* 指定为“createElement”调用的对象。这仅适用于以“反应”JSX发射为目标的情况。 */
// "noLib": true, /* 禁用包含任何库文件，包括默认的lib.d.ts。 */
// "useDefineForClassFields": true, /* 发出符合ECMAScript标准的类字段。*/
// "moduleDetection": "auto", /* 控制使用何种方法检测模块格式的JS文件。 */
/* Modules */
"module": "commonjs", /* 指定生成的模块代码。*/
// "rootDir": "./", /* 指定源文件中的根文件夹。 */
// "moduleResolution": "node10", /* 指定TypeScript如何从给定的模块说明符中查找文件。 */
// "baseUrl": "./", /* 用于解析非相对模块名称的基本目录。默认值为 undefined。 */
// "paths": {}, /* 指定模块名到基于 baseUrl 的路径映射。默认值为 undefined。 */
// "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, /* 允许JavaScript文件成为程序的一部分。使用“checkJS”选项可以从这些文件中获取错误。 */
// "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, /* 禁用未使用标签的错误报告。 */
// "allowUnreachableCode": true, /* 禁用无法访问的代码的错误报告 */
/* Completeness */
// "skipDefaultLibCheck": true, /* Skip type checking .d.ts files that are included with TypeScript. */
"skipLibCheck": true /* Skip type checking all .d.ts files. */
}
}
常用配置
{
"compilerOptions": {
"target": "esnext",
"module": "esnext",
"moduleResolution": "node",
"strict": true,
"noLib": false,
"forceConsistentCasingInFileNames": true,
"allowSyntheticDefaultImports": true,
"strictFunctionTypes": false,
"jsx": "preserve",
"baseUrl": ".",
"allowJs": true,
"sourceMap": true,
"esModuleInterop": true,
"resolveJsonModule": true,
"noUnusedLocals": true,
"noUnusedParameters": true,
"experimentalDecorators": true,
"lib": ["dom", "esnext"],
"noImplicitAny": false,
"skipLibCheck": true,
"types": ["vite/client"],
"removeComments": true,
"paths": {
"/@/*": ["src/*"],
"/#/*": ["types/*"]
}
},
"include": [
"tests/**/*.ts",
"src/**/*.ts",
"src/**/*.d.ts",
"src/**/*.tsx",
"src/**/*.vue",
"types/**/*.d.ts",
"types/**/*.ts",
"build/**/*.ts",
"build/**/*.d.ts",
"mock/**/*.ts",
"vite.config.ts"
],
"exclude": ["node_modules", "tests/server/**/*.ts", "dist", "**/*.js"]
}
