Vue 2 vs Vue 3 and Composition API vs Options API: complete comparison
Vue 3, released in late 2020, introduced significant improvements over Vue 2, including a proxy-based reactivity system, better performance, and native TypeScript support. The Composition API offers a more flexible alternative to the Options API, though both remain officially supported. Migration from Vue 2 can be complex due to breaking changes like the removal of $listeners and the transition from Vuex to Pinia.
- ▪Vue 3 uses ES2015 Proxy for reactivity, eliminating the need for $set when adding new properties.
- ▪Vue 3 is tree-shakable, reducing bundle size by about 40% compared to Vue 2.
- ▪The Composition API provides better logic organization and reusability, especially in larger components.
- ▪Vue 2 reached end-of-life in December 2023, but migration challenges persist in legacy projects.
- ▪Structural features like Fragments, Teleport, and Suspense are available in Vue 3 but were missing in Vue 2.
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try { if(localStorage) { let currentUser = localStorage.getItem('current_user'); if (currentUser) { currentUser = JSON.parse(currentUser); if (currentUser.id === 3833552) { document.getElementById('article-show-container').classList.add('current-user-is-article-author'); } } } } catch (e) { console.error(e); } Odilon HUGONNOT Posted on May 17 • Originally published at web-developpeur.com Vue 2 vs Vue 3 and Composition API vs Options API: complete comparison #vue3 #vue2 #compositionapi #optionsapi Vue 3 launched in late 2020. Five years later, Vue 2 has been officially end-of-life since December 2023, yet migration is still dragging in many projects.
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