Version: 2.7.0 (current)

Summary

This command line help you create your React Native project in a easy and useful structure by creating components and screens in separate folders in order to distinguish between them. It also make it easier to create navigations for your screens without writing a single line of code.

The following project structure is used by this command:

JavaScript
TypeScript

src/
├── components
│   ├── comp-one
│   │   ├── __tests__
│   │   │   └── index.spec.jsx
│   │   ├── index.jsx
│   │   └── styles.js
│   ├── comp-two
│   │   ├── __tests__
│   │   │   └── index.spec.jsx
│   │   ├── index.jsx
│   │   └── styles.js
│   └── folder
│       └── comp-three
│           ├── __tests__
│           │   └── index.spec.jsx
│           ├── index.jsx
│           └── styles.js
├── redux
│   ├── actions
│   │   └── general
│   │       └── index.js
│   ├── index.js
│   └── reducers
│       ├── general
│       │   └── index.js
│       └── index.js
└── screens
    ├── folder
    │   ├── navigation.jsx
    │   ├── screen-four
    │   │   ├── __tests__
    │   │   │   └── index.spec.jsx
    │   │   ├── index.jsx
    │   │   └── styles.js
    │   └── screen-three
    │       ├── __tests__
    │       │   └── index.spec.jsx
    │       ├── index.jsx
    │       └── styles.js
    ├── navigation.jsx
    ├── screen-one
    │   ├── __tests__
    │   │   └── index.spec.jsx
    │   ├── index.jsx
    │   └── styles.js
    └── screen-two
        ├── __tests__
        │   └── index.spec.jsx
        ├── index.jsx
        └── styles.js

src/
├── components
│   ├── comp-one
│   │   ├── __tests__
│   │   │   └── index.spec.tsx
│   │   ├── index.tsx
│   │   └── styles.ts
│   ├── comp-two
│   │   ├── __tests__
│   │   │   └── index.spec.tsx
│   │   ├── index.tsx
│   │   └── styles.ts
│   └── folder
│       └── comp-three
│           ├── __tests__
│           │   └── index.spec.tsx
│           ├── index.tsx
│           └── styles.ts
├── redux
│   ├── actions
│   │   └── general
│   │       └── index.ts
│   ├── index.ts
│   └── reducers
│       ├── general
│       │   └── index.ts
│       └── index.ts
└── screens
    ├── folder
    │   ├── navigation.tsx
    │   ├── screen-four
    │   │   ├── __tests__
    │   │   │   └── index.spec.tsx
    │   │   ├── index.tsx
    │   │   └── styles.ts
    │   └── screen-three
    │       ├── __tests__
    │       │   └── index.spec.tsx
    │       ├── index.tsx
    │       └── styles.ts
    ├── navigation.tsx
    ├── screen-one
    │   ├── __tests__
    │   │   └── index.spec.tsx
    │   ├── index.tsx
    │   └── styles.ts
    └── screen-two
        ├── __tests__
        │   └── index.spec.tsx
        ├── index.tsx
        └── styles.ts

As you can see above, the src folder is the folder that resides at the root of your React Native project and under this folder, you will find the components folder which contains all the shared components that are used through out the screen. The screens folder contains the app's screens that can uses some of the shared components above it.
In each component you will find index.tsx that contains the components JSX.Element syntaxes, and styles.ts that contains the styles for that component.
In each screen you will find index.tsx that contains the JSX.Element syntaxes, and styles.ts that contains the screen's styles and functions folder which will contain the screen's specific functions.
Each screen can use one of the shared components that are defined in components folder, and you can pass the functions to those components hence there is not functions folder under a component subfolder.
For the screens part you can find navigation.tsx files that shows the relation between the screens that resides in the same folder. For example, the navigation.tsx under the screens folder represent a stack navigation between folder and screen-one and screen-two. As for the navigation.tsx file under the folder folder is represent a drawer navigation between screen-three and screen-four.
In both the components and screens folders, you can find __tests__ folder that contains the tests for the component or screen.
As for the redux folder you can see there is index.ts which contain the redux store, and actions and reducers folders are next to it so you can find only things that are related to redux in one single place.
This command line can write code in both JavaScript and TypeScript. By default it will use the used language for your React Native project and of course you can override the used language using one of its options.
You can override the usage of the default behavior of this command line by modifying the rnhc.config.json file (more details can be found here).