What are 2 core features of Vue 3? What are key characteristics of Vue.js framework?

Core two features of Vue 3 are:

Declarative Rendering: Vue enhances regular HTML with a powerful template syntax, enabling you to clearly define the output of HTML elements based on the underlying JavaScript state.

Reactivity: Vue monitors changes in the JavaScript state automatically, ensuring the DOM is updated efficiently and dynamically as the state evolves. Vue automatically tracks JavaScript state changes and efficiently updates the DOM when changes happen.

Here are another key features of Vue.js – important but not core ones:

1. Component-Based Architecture: Vue is built around components, which are reusable, self-contained units of code that define how a particular part of the user interface should behave and look.
2. Reactive Data Binding: Vue enables efficient two-way data binding, which automatically keeps the UI in sync with the data model. This makes it simple to handle dynamic updates to the user interface.
3. Directives: Vue provides special tokens, called directives (e.g., v-if, v-for, v-bind), that offer declarative ways to handle DOM updates.
4. Single-File Components (SFC): In Vue, components can be organized in .vue files that combine HTML, JavaScript, and CSS into a single file, which makes the development process easier to manage.
5. Virtual DOM: Vue uses a virtual DOM for optimizing updates to the user interface, only changing the parts that need updating rather than re-rendering the entire UI.
6. State Management: While Vue itself is focused on the view layer, it can be extended with libraries like Vuex for state management in more complex applications, particularly SPAs.
7. Routing: Vue Router is the official router for Vue, which enables navigation between different views or pages in single-page applications.

Vue.js (commonly referred to as Vue) is a progressive JavaScript framework used for building user interfaces, particularly for single-page applications (SPAs). It focuses on being easy to use and integrate, with a flexible core that can handle a wide range of applications.

Vue 3 is often favored for its simplicity and flexibility, making it suitable for both small projects and complex applications. It can be incrementally adopted, meaning you can use Vue for just a part of your project, or build an entire application using it.