# TS 配置文件
# ts --init
运行 tsc --init 后初始化的文件 2022
{
"compilerOptions": {
/* Visit https://aka.ms/tsconfig.json to read more about this file */
/* Projects */
// "incremental": true, /* Enable incremental compilation */
// "composite": true, /* Enable constraints that allow a TypeScript project to be used with project references. */
// "tsBuildInfoFile": "./", /* Specify the folder for .tsbuildinfo incremental compilation files. */
// "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": "es5", /* 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 TC39 stage 2 draft 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. */
/* Modules */
"module": "commonjs", /* Specify what module code is generated. */
// "rootDir": "./", /* Specify the root folder within your source files. */
// "moduleResolution": "node", /* 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. */
// "resolveJsonModule": true, /* Enable importing .json files */
// "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. */
// "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. */
// "inlineSourceMap": true, /* Include sourcemap files inside the emitted JavaScript. */
// "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. */
/* Interop Constraints */
// "isolatedModules": true, /* Ensure that each file can be safely transpiled without relying on other imports. */
// "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, /* Type catch clause variables as 'unknown' instead of 'any'. */
// "alwaysStrict": true, /* Ensure 'use strict' is always emitted. */
// "noUnusedLocals": true, /* Enable error reporting when a 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, /* Include 'undefined' in index signature results */
// "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. */
}
}
# 配置详解
{
"compilerOptions": {
// "incremental": true, // 增量编译
// "tsBuildInfoFile": "./buildFile", // 增量编译文件的存储位置
// "diagnostics": true, // 打印诊断信息
// "target": "es5", // 目标语言的版本
// "module": "commonjs", // 生成代码的模块标准
// "outFile": "./app.js", // 将多个相互依赖的文件生成一个文件，可以用在 AMD 模块中
// "lib": [], // TS 需要引用的库，即声明文件，es5 默认 "dom", "es5", "scripthost"
// "allowJs": true, // 允许编译 JS 文件（js、jsx）
// "checkJs": true, // 允许在 JS 文件中报错，通常与 allowJS 一起使用
// "outDir": "./out", // 指定输出目录
// "rootDir": "./", // 指定输入文件目录（用于输出）
// "declaration": true, // 生成声明文件
// "declarationDir": "./d", // 声明文件的路径
// "emitDeclarationOnly": true, // 只生成声明文件
// "sourceMap": true, // 生成目标文件的 sourceMap
// "inlineSourceMap": true, // 生成目标文件的 inline sourceMap
// "declarationMap": true, // 生成声明文件的 sourceMap
// "typeRoots": [], // 声明文件目录，默认 node_modules/@types
// "types": [], // 声明文件包
// "removeComments": true, // 删除注释
// "noEmit": true, // 不输出文件
// "noEmitOnError": true, // 发生错误时不输出文件
// "noEmitHelpers": true, // 不生成 helper 函数，需额外安装 ts-helpers
// "importHelpers": true, // 通过 tslib 引入 helper 函数，文件必须是模块
// "downlevelIteration": true, // 降级遍历器的实现（es3/5）
// "strict": true, // 开启所有严格的类型检查
// "alwaysStrict": false, // 在代码中注入 "use strict";
// "noImplicitAny": false, // 不允许隐式的 any 类型
// "strictNullChecks": false, // 不允许把 null、undefined 赋值给其他类型变量
// "strictFunctionTypes": false // 不允许函数参数双向协变
// "strictPropertyInitialization": false, // 类的实例属性必须初始化
// "strictBindCallApply": false, // 严格的 bind/call/apply 检查
// "noImplicitThis": false, // 不允许 this 有隐式的 any 类型
// "noUnusedLocals": true, // 检查只声明，未使用的局部变量
// "noUnusedParameters": true, // 检查未使用的函数参数
// "noFallthroughCasesInSwitch": true, // 防止 switch 语句贯穿
// "noImplicitReturns": true, // 每个分支都要有返回值
// "esModuleInterop": true, // 允许 export = 导出，由import from 导入
// "allowUmdGlobalAccess": true, // 允许在模块中访问 UMD 全局变量
// "moduleResolution": "node", // 模块解析策略
// "baseUrl": "./", // 解析非相对模块的基地址
// "paths": { // 路径映射，相对于 baseUrl
// "jquery": ["node_modules/jquery/dist/jquery.slim.min.js"]
// },
// "rootDirs": ["src", "out"], // 将多个目录放在一个虚拟目录下，用于运行时
// "listEmittedFiles": true, // 打印输出的文件
// "listFiles": true, // 打印编译的文件（包括引用的声明文件）
},
"include": [
"./src/**/*" //输入的文件路径
]
}