mern-docker-app/
├── client/
│   ├── public/
│   │   └── index.html
│   ├── src/
│   │   ├── App.js
│   │   └── index.js
│   ├── Dockerfile
│   └── package.json
├── server/
│   ├── src/
│   │   └── index.js
│   ├── Dockerfile
│   └── package.json
├── docker-compose.yml
├── docker-compose.prod.yml
└── .dockerignore

Tired of wasting time constructing the basic file structure just to get started building your MERN app. Just say HEY MERN! Use this simple script to get you up in running immediately with one command.

$ npx heymern

Ever wanted to learn to play the piano. Well now you can with Javascript AudioContext.

AudioContext is a powerful API provided by JavaScript that allows developers to create, manipulate, and analyze audio data directly within a web browser. It essentially turns your browser into a digital audio workstation (DAW), enabling you to build interactive audio applications, music synthesizers, and audio effects.

Vue.js, commonly referred to as Vue, is an open-source JavaScript framework used for building user interfaces and single-page applications (SPAs). Vue is designed to be approachable, flexible, and highly customizable, making it a popular choice among developers for creating dynamic and interactive web applications.

Key features and concepts of Vue.js include:

1. Component-Based Architecture: Similar to React, Vue.js encourages building applications using reusable components. Components encapsulate both the UI and behavior, making it easier to manage and maintain complex user interfaces.

2. Reactivity: Vue introduces a reactivity system that automatically updates the DOM whenever the underlying data changes. This system allows developers to declare data dependencies and efficiently manage UI updates.

3. Vue Directives: Vue provides special directives that allow you to bind data to the DOM, manipulate the DOM, and apply conditional rendering. For example, the `v-bind` directive is used to bind data to HTML attributes, and the `v-if` directive is used for conditional rendering.

4. Templates: Vue supports an HTML-based template syntax that allows you to declare the structure of your UI components in a declarative manner. These templates are then compiled into render functions for efficient rendering.

5. Vue Router: Vue Router is an official routing library for Vue.js. It provides tools for creating single-page applications with client-side routing, allowing you to define different views and navigate between them without full page reloads.

6. Vuex: Vuex is Vue's official state management library. It helps manage centralized state across your application and provides a way to share data between components.

React is an open-source JavaScript library developed and maintained by Facebook (and a community of developers) for building user interfaces, particularly for web applications. It's widely used to create dynamic, interactive, and reusable UI components.

The primary goal of React is to provide a flexible and efficient way to create user interfaces that update and render efficiently when the underlying data changes. It uses a concept called the "Virtual DOM" to optimize the process of updating the actual browser DOM, making UI updates more performant.

Key features and concepts of React include:

1. Components: React applications are built using components, which are modular, reusable building blocks for UI elements. Components can be composed together to create complex user interfaces.

2. Virtual DOM: React uses a Virtual DOM to represent the structure of the actual browser DOM. When data changes, React calculates the difference between the previous and new Virtual DOM states (known as the "diffing" process) and updates the actual DOM efficiently.

3. One-Way Data Binding: React enforces a unidirectional data flow. Data flows from parent components to child components via props, and child components can't directly modify the data passed to them.

4. JSX: JSX is a syntax extension that allows you to write HTML-like code within your JavaScript code. It makes it easier to describe the structure of your UI components.

5. State: React components can have internal state, which allows them to manage and respond to changes in their own data. Stateful components re-render when their state changes.

6. Props: Props (short for properties) are data passed from parent to child components. They are immutable and allow you to configure and customize components dynamically.

Angular is an open-source web application framework developed and maintained by Google and a community of developers. It's used for building dynamic, single-page applications (SPAs) and web applications with rich user interfaces. Angular provides a comprehensive set of tools and features to help developers create complex and scalable applications.

Key features and concepts of Angular include:

1. Component-Based Architecture: Angular applications are built using components, which are reusable and encapsulated building blocks for UI elements. Components are organized in a hierarchical structure and communicate with each other using inputs, outputs, and services.

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3. Templates and Directives: Angular templates use a declarative syntax to define the structure and behavior of the UI. Directives, such as `ngFor` and `ngIf`, allow you to manipulate the DOM, apply conditional rendering, and iterate over data.

4. Reactive Programming: Angular leverages reactive programming concepts with the RxJS library. Observables are used to handle asynchronous data streams and facilitate real-time updates in the application.

5. Services: Services in Angular are used to encapsulate business logic, data manipulation, and interaction with external resources (like APIs). Services are injectable and can be shared among components.

6. Routing: Angular provides a powerful routing system that allows you to create multi-view applications with client-side routing. You can define routes, navigate between views, and load components dynamically.