TYPESCRIPT

generate tsconfig

npx tsc --init

typescript tsconfig.json file

{
  "compilerOptions": {
    "module": "esnext",
    "target": "es2016",
    "jsx": "react-jsx",
    "strictFunctionTypes": true,
    "sourceMap": true,
    "outDir": "./build",
    "lib": ["dom", "dom.iterable", "esnext"],
    "allowJs": true,
    "skipLibCheck": true,
    "esModuleInterop": true,
    "allowSyntheticDefaultImports": true,
    "strict": true,
    "forceConsistentCasingInFileNames": true,
    "noFallthroughCasesInSwitch": true,
    "moduleResolution": "node",
    "resolveJsonModule": true,
    "isolatedModules": true,
    "noEmit": true
  },
  "exclude": ["node_modules", "**/node_modules/*"],
  "include": ["src", "electron/renderer.ts"]
}

basic tsconfig file

{
    "compilerOptions": {
      "outDir": "./dist/",
+     "sourceMap": true,
      "noImplicitAny": true,
      "module": "commonjs",
      "target": "es5",
      "jsx": "react",
      "allowJs": true,
      "moduleResolution": "node",
    }
  }

generate tsconfig

[1] $ tsc -v
[2] If the version is older than 1.6:
	$ npm install -g typescript
[3] $ tsc --init

tsconfig.json

// mytsconfig.
{
    "compilerOptions": {
        "allowJs": true,
        "checkJs": false,
        "allowSyntheticDefaultImports": true,
        "esModuleInterop": true,
        "typeRoots": ["src/types", "node_modules/@types"],
        "baseUrl": "src",
        "paths": {
            "@/*": ["*"] // matching @src/* to src/*
        },
        "outDir": "dist",
        "experimentalDecorators": true,
        
    },
    "exclude": ["node_modules", "dist"],
    "include": ["src/**/*","src/*"]
}

tsconfig.json, Typescript

{
  "compilerOptions": {
    "experimentalDecorators": true,
    "jsxImportSource": "preact"
  }
}

pass tsconfig.json to node command

# To force the use of a specific tsconfig.json, use the TS_NODE_PROJECT environment variable
TS_NODE_PROJECT="path/to/tsconfig.json" node --loader ts-node/esm ./my-script.ts

comments tsconfig.json

In some files the option for checking comments is off by default 
(tsconfig, tslint and eslint configs), as corresponding tools allow comments in
JSON (this is hardcoded). 

So IDEs recognize this and allow you to add comments even if standard 
doesnt allow.