tsc --init

{
  "compilerOptions": {
    "target": "es5", // Specify the JS version to compile to
    "module": "commonjs", // Specify the type of module to generate
    "strict": true, // Enable all strict type-checking options
    "esModuleInterop": true, // Compatibility for module imports
    "skipLibCheck": true, // Skip checking imported library files
    "forceConsistentCasingInFileNames": true // Ensure consistent casing in file names
  }
}

{
  "compileOnSave": false, // Regenerate compiled files based on tsconfig.json when saving
  "compilerOptions": {
    /* Basic Options */
    "target": "es5", // Specify the JS version to compile to: 'ES3' (default), 'ES5', 'ES6'/'ES2015', 'ES2016', 'ES2017', or 'ESNEXT'
    "module": "commonjs", // Specify the type of module to generate: 'commonjs', 'amd', 'system', 'umd' or 'es2015'
    "lib": [], // Specific library files to include in compilation
    "allowJs": true, // Allow compilation of JavaScript files
    "checkJs": true, // Report errors in JavaScript files
    "jsx": "preserve", // Specify the generation of JSX code: 'preserve', 'react-native', or 'react'
    "declaration": true, // Generate corresponding '.d.ts' files
    "declarationMap": true, // Generate source maps for declaration files
    "sourceMap": true, // Generate corresponding '.map' files
    "outFile": "./", // Merge output files into a single file
    "outDir": "./", // Specify output directory
    "rootDir": "./", // The location where files should be placed
    "composite": true, // Whether to compile and build referenced projects
    "tsBuildInfoFile": "./", // Specify the file to store incremental compilation information, default is tsconfig.tsbuildinfo
    "removeComments": true, // Remove all comments after compilation
    "noEmit": true, // Do not produce output files
    "importHelpers": true, // Import helper functions from tslib
    "isolatedModules": true, // Treat each file as a separate module (similar to 'ts.transpileModule').

    /* Strict Type Checking Options */
    "strict": true, // Enable all strict type-checking options
    "noImplicitAny": true, // Report errors on expressions and declarations with an implicit 'any' type
    "strictNullChecks": true, // Enable strict null checks
    "strictFunctionTypes": true, // Enable checking of function types
    "strictBindCallApply": true, // Enable stricter type checking for bind, call, apply
    "strictPropertyInitialization": true, // Enable checks for class instance property assignments
    "noImplicitThis": true, // Generate an error when the value of 'this' expression is of type 'any'
    "alwaysStrict": true, // Check each module in strict mode and add 'use strict' to each file

    /* Additional Checks */
    "noUnusedLocals": true, // Throw an error when there are unused variables
    "noUnusedParameters": true, // Throw an error when there are unused parameters
    "noImplicitReturns": true, // Throw an error when not all code paths in a function return a value
    "noFallthroughCasesInSwitch": true, // Report fallthrough errors in switch statements
    "noUncheckedIndexedAccess": true, // Check if index signature properties are undefined

    /* Module Options */
    "moduleResolution": "node", // Choose module resolution strategy: 'node' (Node.js) or 'classic' (TypeScript pre-1.6)
    "baseUrl": "./", // Base directory for resolving non-relative module names
    "paths": {}, // List of path mappings for module names based on baseUrl
    "rootDirs": [], // List of root folders whose combined content represents the structure of the project at runtime
    "typeRoots": [], // List of files containing type declarations
    "types": [], // List of type declaration file names to include
    "allowSyntheticDefaultImports": true, // Allow default imports from modules without a default export.

    /* Source Map Options */
    "sourceRoot": "./", // Specify where the debugger should find TypeScript files instead of source files
    "mapRoot": "./", // Specify where the debugger should find map files instead of generated files
    "inlineSourceMap": true, // Generate a single soucemaps file instead of generating sourcemaps in different files
    "inlineSources": true, // Generate code and sourcemaps into a single file, requires both --inlineSourceMap or --sourceMap to be set

    /* Other Options */
    "experimentalDecorators": true, // Enable decorators
    "emitDecoratorMetadata": true, // Support for providing metadata for decorators

    /* Advanced Options */
    "skipLibCheck": true, // Skip checking imported library files
    "forceConsistentCasingInFileNames": true // Ensure consistent casing in file names
  },
  "files": [
    "hello.ts" // If files are specified, only the specified hello.ts file will be compiled.
  ],
  "exclude": [
    // Specify files or folders that the compiler should exclude
    "node_modules"
  ],
  "extends": "./tsconfig.base.json", // Extract basic configuration into tsconfig.base.json and import it

  "references": [
    // Specify paths to dependent projects
    { "path": "./common" }
  ],
  "typeAcquisition": {
    // Automatically include library-related definition files (.d.ts).
    "enable": false,
    "exclude": ["jquery"],
    "include": ["jest"]
  }
}