JAVASCRIPT

generate tsconfig

npx tsc --init

tsconfig.json not generated

$ tsc --init

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"
  }
}