TypeScript · Schema

TypeScript Compiler Options

Configuration options for the TypeScript compiler (tsconfig.json compilerOptions)

CompilerJavaScriptLanguage ServiceProgramming LanguageStatic TypingWeb Development

Properties

Name	Type	Description
target	string	ECMAScript target version for emitted JavaScript
module	string	Module system for emitted JavaScript
strict	boolean	Enable all strict type-checking options
strictNullChecks	boolean	Raise errors on expressions that may be null or undefined
noImplicitAny	boolean	Raise error on expressions and declarations with an implied 'any' type
esModuleInterop	boolean	Enables emit interoperability between CommonJS and ES modules
outDir	string	Redirect output structure to the directory
rootDir	string	Specify the root directory of input files
declaration	boolean	Generates corresponding .d.ts file for each TypeScript file
declarationMap	boolean	Generates a sourcemap for each corresponding .d.ts file
sourceMap	boolean	Generates corresponding .map file for emitted JavaScript
lib	array	List of library files to be included in the compilation
paths	object	Path mapping entries for module names to locations
baseUrl	string	Base directory to resolve non-relative module names
experimentalDecorators	boolean	Enables experimental support for decorators
emitDecoratorMetadata	boolean	Enables experimental support for emitting type metadata for decorators
skipLibCheck	boolean	Skip type checking of declaration files
resolveJsonModule	boolean	Include modules imported with .json extension
jsx	string	JSX code generation strategy

View JSON Schema on GitHub

JSON Schema

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://www.typescriptlang.org/schemas/compiler-options",
  "title": "TypeScript Compiler Options",
  "description": "Configuration options for the TypeScript compiler (tsconfig.json compilerOptions)",
  "type": "object",
  "properties": {
    "target": {
      "type": "string",
      "enum": ["ES3", "ES5", "ES6", "ES2015", "ES2016", "ES2017", "ES2018", "ES2019", "ES2020", "ES2021", "ES2022", "ES2023", "ESNext"],
      "description": "ECMAScript target version for emitted JavaScript"
    },
    "module": {
      "type": "string",
      "enum": ["CommonJS", "AMD", "System", "UMD", "ES6", "ES2015", "ES2020", "ES2022", "ESNext", "Node16", "NodeNext", "None"],
      "description": "Module system for emitted JavaScript"
    },
    "strict": {
      "type": "boolean",
      "description": "Enable all strict type-checking options"
    },
    "strictNullChecks": {
      "type": "boolean",
      "description": "Raise errors on expressions that may be null or undefined"
    },
    "noImplicitAny": {
      "type": "boolean",
      "description": "Raise error on expressions and declarations with an implied 'any' type"
    },
    "esModuleInterop": {
      "type": "boolean",
      "description": "Enables emit interoperability between CommonJS and ES modules"
    },
    "outDir": {
      "type": "string",
      "description": "Redirect output structure to the directory"
    },
    "rootDir": {
      "type": "string",
      "description": "Specify the root directory of input files"
    },
    "declaration": {
      "type": "boolean",
      "description": "Generates corresponding .d.ts file for each TypeScript file"
    },
    "declarationMap": {
      "type": "boolean",
      "description": "Generates a sourcemap for each corresponding .d.ts file"
    },
    "sourceMap": {
      "type": "boolean",
      "description": "Generates corresponding .map file for emitted JavaScript"
    },
    "lib": {
      "type": "array",
      "items": {"type": "string"},
      "description": "List of library files to be included in the compilation"
    },
    "paths": {
      "type": "object",
      "description": "Path mapping entries for module names to locations"
    },
    "baseUrl": {
      "type": "string",
      "description": "Base directory to resolve non-relative module names"
    },
    "experimentalDecorators": {
      "type": "boolean",
      "description": "Enables experimental support for decorators"
    },
    "emitDecoratorMetadata": {
      "type": "boolean",
      "description": "Enables experimental support for emitting type metadata for decorators"
    },
    "skipLibCheck": {
      "type": "boolean",
      "description": "Skip type checking of declaration files"
    },
    "resolveJsonModule": {
      "type": "boolean",
      "description": "Include modules imported with .json extension"
    },
    "jsx": {
      "type": "string",
      "enum": ["preserve", "react", "react-jsx", "react-jsxdev", "react-native"],
      "description": "JSX code generation strategy"
    }
  }
}