tsconfig.json配置详解

使用 vite 创建 vue3 项目中会自动生成三个 tsconfig 相关的文件，分别是：tsconfig.json、tsconfig.node.json、tsconfig.app.json。tsconfig.node.json 是专门用来配置 vite.config.ts 文件的编译规则，tsconfig.app.json 则是用来定义项目中其他文件的 ts 编译规则。后面两个文件最终会被引入到 tsconfig.json 中。

{
  "compilerOptions": {
    
    "target": "es5" ,
    "module": "commonjs" ,
    "lib": ["es6", "dom"] ,
    "allowJs": true,                       
    "checkJs": true,                       
    "jsx": "preserve",                     
    "declaration": true,                   
    "declarationMap": true,                
    "sourceMap": true,                     
    "outFile": "./",                       
    "outDir": "./",                        
    "rootDir": "./",                       
    "composite": true,                     
    "incremental": true,                   
    "tsBuildInfoFile": "./",               
    "removeComments": true,                
    "noEmit": true,                        
    "importHelpers": true,                 
    "downlevelIteration": true,            
    "isolatedModules": true,               

    
    "strict": true ,
    "noImplicitAny": true,                 
    "strictNullChecks": true,              
    "strictFunctionTypes": true,           
    "strictBindCallApply": true,           
    "strictPropertyInitialization": true,  
   "noImplicitThis": true,                
    "alwaysStrict": true,                  

    
    "noUnusedLocals": true,                
    "noUnusedParameters": true,            
    "noImplicitReturns": true,             
    "noFallthroughCasesInSwitch": true,    

    
    "moduleResolution": "node",            
    "baseUrl": "./",                       
    "paths": {},                           
    "rootDirs": [],                        
    "typeRoots": [],                       
    "types": [],                           
    "allowSyntheticDefaultImports": true,  
    "esModuleInterop": true ,
    "preserveSymlinks": true,              

    
    "sourceRoot": "",                      
    "mapRoot": "",                         
    "inlineSourceMap": true,               
    "inlineSources": true,                 

    
    "experimentalDecorators": true 
    "emitDecoratorMetadata": true,         
  }
  "files": [], 
  "include": [],  
  "exclude": [],  
  "extends": "",   
  "compileOnSave": true,  
  "references": [],  
}