Composition API
The Composition API is a set of APIs in Vue.js 3 that allows developers to organize component logic using functions instead of options. It provides a more flexible way to reuse and compose logic across components, addressing limitations of the Options API in complex scenarios. This API enables better TypeScript integration and more maintainable code structure in large-scale applications.
Developers should learn the Composition API when building complex Vue.js applications that require better code organization, logic reuse, or TypeScript support. It's particularly useful for large codebases where the Options API becomes difficult to maintain, and for creating composable functions that can be shared across multiple components. The Composition API also enables more fine-grained reactivity control compared to the Options API.