# Angular Skills Test and Verified Angular Score > An Angular skills test on RxJS and change detection, plus live code reviews and connected GitHub repositories. See what proves Angular developer skills. Source: https://getlemma.io/skills/angular Angular is built for large teams and long-lived apps, so the useful question is how well you structure one. Lemma records that through live sessions, adaptive assessments and repositories you connect. How Angular is assessed ## What Angular competence looks like A competent Angular developer keeps components thin and moves logic into injectable services. They understand dependency injection scopes, know why change detection runs and when OnPush helps, and can find the subscription that is leaking memory. Signals and observables are each used where they fit. They are fluent in RxJS for real problems such as typeahead search, retries and combining streams, and they unsubscribe or use the async pipe by habit. They write typed reactive forms with clear validation, lazy-load feature routes, and keep a large module or standalone structure that a new team member can navigate. ### Components and templates Inputs, outputs, content projection and template syntax used to keep components small and focused. ### Dependency injection Providers, injection scopes and services that hold logic and state outside the component tree. ### RxJS and observables Operators for search, polling and retries, plus clean subscription handling to avoid leaks. ### Change detection and signals Default versus OnPush detection, signals, and diagnosing why a view updates too often. ### Reactive forms Typed form groups, custom validators, async validation and clear error states. ### Routing and lazy loading Feature routes, guards, resolvers and splitting bundles so large apps load quickly. ## What counts as evidence of Angular skills? Listing Angular 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 Angular 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) ### Angular architecture review in a live session Walk a practitioner through a feature's components, services and data flow, or build one together. They rate how you use dependency injection and RxJS. [Adaptive assessment](https://getlemma.io/product/assessments) ### Adaptive Angular assessment Scenario questions cover change detection, observables and forms. Harder rounds describe a leaking subscription or a stale view, and you pick the right fix. [GitHub connector](https://getlemma.io/product/passport) ### An Angular repository via GitHub Connect a repository or commit, such as a migration to standalone components or signals. Lemma checks it exists and that you have access. [AI tutor practice](https://getlemma.io/product/ai-tutor) ### RxJS practice with the AI tutor Drill operator choice and stream composition with exercises that adapt to you. Drills add a small, capped amount to practice; they build fluency rather than prove it. ## How is an Angular skills test run on Lemma? The Angular 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 Angular 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 Angular 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. ### Review a feature live In a session, a practitioner explores how you structure an Angular feature: what lives in services, how streams flow and how change detection is configured. They rate the session afterwards. 2. ### Pass the adaptive assessment Questions adapt as you go and cover components, dependency injection, RxJS, forms and routing. Each is a realistic scenario with a time limit, and harder ones count for more. 3. ### Connect your codebase Link GitHub work so your sessions and assessment sit beside a real Angular project. Keep practising to keep the skill fresh on your Passport. ## Angular skills: common questions ### What Angular skills do enterprise teams look for? Clean service architecture with dependency injection, confident RxJS, an understanding of change detection, typed reactive forms and lazy-loaded routing. Those are the areas a practitioner probes in Lemma's Angular sessions and the topics the adaptive assessment covers. ### How do I prove RxJS skills specifically? Solve a real stream problem in a live session, such as debounced search with cancellation or a retry with backoff. Then take the Angular assessment, which includes observable scenarios. The AI tutor is useful for drilling operators before you do either. ### Do I need to learn signals if I already know RxJS? It helps. Signals handle local, synchronous state simply, while RxJS remains the better tool for async streams and events. Knowing when to use each is a sign of current Angular skill, and it comes up in Lemma's assessment and sessions. ### How do I show Angular skills when my projects are internal? Use live sessions, which don't require your employer's code. Build or review a feature with a practitioner, take the adaptive assessment, and connect any personal Angular repositories through GitHub to round out the record. ## Skills related to Angular [Browse the skills directory](https://getlemma.io/skills) [### TypeScript Show that your types catch real bugs instead of just silencing the compiler. Evidence for TypeScript](https://getlemma.io/skills/typescript)[### JavaScript Evidence that you understand how JavaScript runs, not just how to write its syntax. Evidence for JavaScript](https://getlemma.io/skills/javascript)[### 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)[### GraphQL Show how you design GraphQL schemas and resolvers that stay fast and safe. Evidence for GraphQL](https://getlemma.io/skills/graphql) ![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 Angular evidence record. Lemma is in early access. Request an invite and we will email you when your place is ready.