New features in Vue 3 and how to use them

Vue 3, in its Alpha version, introduces significant enhancements such as the Composition API, which is now built-in, allowing for better code organization and reusability compared to the Options API used in Vue 2. While still in the experimental phase, Vue 3 promises improved performance, reduced file size, and enhanced TypeScript support. New features include multiple root elements in templates, the Suspense component for handling asynchronous data, multiple v-models for two-way data binding, and better reactivity, addressing limitations found in Vue 2. The portal functionality, now integrated as the Teleport component, enables rendering across different DOM trees. Vue 3 also adopts a new global mounting process via the createApp method, which isolates third-party plugins from the global instance. Although the stable release is pending, developers are encouraged to familiarize themselves with these features to ease the transition from Vue 2, with the assurance of minimal breaking changes.