TypeScript

//type script config, which version to convert to "target": "es6",

{
    "compilerOptions": {
        "outDir": "./src",
        "rootDir": "./src-tsc",
        "allowJs": true,
        "target": "es6",
        "noImplicitAny": true,
        "suppressImplicitAnyIndexErrors": false
    },
    "include": [
        "./src-tsc"
    ]
}

TypeScript subtyping is by structural equivalency.

Also allow extends,

the structural equivalency

Resources:

https://github.com/Microsoft/TypeScript-React-Starter/tree/master/src

1. Search if a package's type definition if available or not

https://microsoft.github.io/TypeSearch/

1. VS Code uses the TypeScript language service for its JavaScript code intelligence and it has a feature called Automatic Type Acquisition (ATA). ATA pulls down the npm Type Declaration files (*.d.ts) for the npm modules referenced in the package.json.

https://code.visualstudio.com/docs/nodejs/reactjs-tutorial

1. TypeScript and React

https://charleslbryant.gitbooks.io/hello-react-and-typescript/content/TypeScriptAndReact.html

1. TypeScript Deep Dive

https://basarat.gitbooks.io/typescript/