Vue 3 - The Composition API (Part 1)
As the most starred open source, JavaScript library/framework repository on GitHub, Vue.js has become a top three front-end technology alongside React.js and Angular in terms of popularity, usage, ecosystem activity and developer satisfaction. Compared to React.js and Angular, Vue.js is incrementally adoptable and provides a declarative API that resonates with AngularJS developers. Evan You , the author of Vue.js, explained the original concept of Vue.js as extracting the best parts of AngularJS, such as directives (i.e., v-if and v-show ), and building a lightweight, flexible alternative. Building large Vue.js applications requires composing components together with state management (i.e., Vuex ) and routing (i.e., Vue Router ) libraries. In September 2020, the Vue.js team officially released Vue 3, which welcomed a number of improvements and new features: Particularly, the Composition API of Vue 3 has been met with controversy due to its resemblance to React hooks and its philosophical divergence from the Options API , which emphasizes separation of concerns by defining component logic within specific options ( data , props , computed , methods , etc.). For those who prefer the Options API, unlike other major version upgrades that introduce incompatible changes, the Composition API will not break existing Vue components using Options API (" purely additive "). Although it offers similar logic composition capabilities as React hooks, the Composition API leverages Vue's reactivity system to circumvent several of React hooks' issues.
