# Vue.js Skills Test and Verified Vue.js Score > Take an adaptive Vue.js skills test, work through the composition API in live sessions and connect GitHub or Vercel projects to prove your Vue skills. Source: https://getlemma.io/skills/vuejs Vue is approachable, which means many people list it after one tutorial. Lemma separates them from practitioners with evidence of how you handle reactivity, composables and state in sessions and adaptive tests. How Vue.js is assessed ## What Vue.js competence looks like A skilled Vue developer understands why something is reactive and why something else is not. They know when a ref is enough, when a reactive object helps, and why destructuring can quietly break reactivity. Computed values do the derived work; watchers are kept for side effects. They organise logic into composables that read like small, testable functions, design components with clear props and emitted events, and keep shared state in a store only when it is truly shared. They are also comfortable with single-file components, scoped styles and the build tooling around them. ### Reactivity system Refs, reactive objects and computed values, and the patterns that accidentally lose reactivity. ### Composition API Writing composables that encapsulate logic cleanly and can be shared across components. ### Component communication Props, emitted events, slots and provide and inject, used without creating hidden coupling. ### State management Using a store such as Pinia for shared state and keeping local state local. ### Routing Vue Router setup, navigation guards, lazy-loaded routes and passing params safely. ### Rendering performance Avoiding unnecessary watchers, using keys correctly and splitting large components. ## What counts as evidence of Vue.js skills? Listing Vue.js on a profile proves nothing on its own. What counts is a component you shipped, a session where someone watched you debug one, or a test you passed. These are the records Lemma can hold for your Vue.js skill, and where each one comes from. See the [evidence methodology](https://getlemma.io/methodology#evidence-types) for how each source is weighed. [Live session](https://getlemma.io/product/sessions) ### Composable design in a live session Refactor a component's logic into a composable with a practitioner. They see how you handle reactivity and component boundaries, then rate the session. [Adaptive assessment](https://getlemma.io/product/assessments) ### Adaptive Vue.js assessment Scenario questions test reactivity pitfalls, watchers versus computed values and component communication. Some show a component that stopped updating, and you choose the cause. [GitHub connector](https://getlemma.io/product/passport) ### A Vue project connected through GitHub Link a repository or commit that shows your components and composables. Lemma checks it exists and that you can access it. [Vercel connector](https://getlemma.io/product/passport) ### A deployed Vue app Connect a Vercel deployment of a Vue application you built, so your record includes software that actually runs. ## How is a Vue.js skills test run on Lemma? The Vue.js test is adaptive: 15 to 25 questions, each picked from how you answered the last, built around real interface bugs rather than trivia. Its result joins your live sessions and linked repositories or deployments in your Vue.js SCI, which also weighs how recent the evidence is. [How the SCI score is calculated](https://getlemma.io/product/sci)[How adaptive skills assessments work](https://getlemma.io/product/assessments)[Practise Vue.js in live skill swap sessions](https://getlemma.io/product/sessions)[Which evidence types count](https://getlemma.io/methodology#evidence-types)[What your Skills Passport shows](https://getlemma.io/product/passport) 1. ### Refactor with a practitioner Book a live session and work on real Vue code: extract a composable, untangle props and events, or fix a reactivity bug. The practitioner rates how you reason, not just the result. 2. ### Take the adaptive assessment Questions adjust to your answers and cover reactivity, the composition API, routing and state. Harder scenarios count for more, each question is timed, and there is no going back. 3. ### Add your shipped work Connect GitHub or Vercel projects so your Vue sessions and assessment sit beside real code. Keep the evidence recent, because older work counts for less over time. ## Vue.js skills: common questions ### How do I show Vue.js experience to a hiring manager? Show a working Vue project, a recent assessment result and a session rating from a practitioner who watched you work. On Lemma those sit under one Vue.js skill on your Passport, which you choose to share. ### Should I learn the Options API or the Composition API? Most new Vue code uses the Composition API, so it is the better place to invest. Many existing codebases still use the Options API, so read both comfortably. Lemma's Vue sessions and assessment focus on composition patterns and reactivity, with Options API questions where they matter. ### What are common Vue.js reactivity mistakes? Destructuring a reactive object and losing reactivity, using a watcher where a computed value would do, mutating props, and forgetting keys in lists. These come up in Lemma's Vue assessment because they are the bugs that reach production most often. ### Is Vue.js worth proving if most jobs ask for React? Yes, if Vue is what you use. Plenty of teams build with it, and strong evidence in one framework shows you understand component design generally. You can build React evidence separately, and each skill keeps its own score. ## Skills related to Vue.js [Browse the skills directory](https://getlemma.io/skills) [### JavaScript Evidence that you understand how JavaScript runs, not just how to write its syntax. Evidence for JavaScript](https://getlemma.io/skills/javascript)[### TypeScript Show that your types catch real bugs instead of just silencing the compiler. Evidence for TypeScript](https://getlemma.io/skills/typescript)[### Node.js Evidence of how you build and debug Node.js services, from the event loop to production errors. Evidence for Node.js](https://getlemma.io/skills/nodejs)[### Angular Evidence for structuring large Angular apps with services, RxJS and change detection. Evidence for Angular](https://getlemma.io/skills/angular) ![Painting of an olive grove in soft sunlight with hills beyond](https://cdn.sanity.io/images/islu4peo/production/613eb3f93566423c9adf45246f2cf1a61437c04c-1680x1120.jpg?w=1080&fm=webp&q=68&fit=max) ## Start your Vue.js evidence record. Lemma is in early access. Request an invite and we will email you when your place is ready.