Alex Delaney
Page 9 of 11

UI as a Function of State in React
Create a slide explaining the core concept of React, that UI is a function of state. The slide should visually represent the formula UI = f(state) and illustrate how events trigger state updates, leading to UI re-renders. It should emphasize declarative programming over direct DOM manipulation. The animation should first show the formula, then the word 'state' should be highlighted, followed by a flow diagram illustrating Event → State Update → Render. The speaker notes should guide the presenter through these steps, explaining the concept clearly.
Suspense Boundaries and Fallbacks in React
This slide visually explains the concept of Suspense boundaries and fallbacks in React, specifically for handling asynchronous operations and loading states. It demonstrates how Suspense allows developers to isolate slow-loading components (like a chart fetching data) and provide a fallback UI (like a loading indicator) while the data loads. This keeps the rest of the application responsive and provides a better user experience. The slide uses a simplified UI tree to illustrate the relationship between the parent component, the Suspense boundary, the loading component, and the fallback UI. The animation shows the transition from the fallback to the loaded component, emphasizing the predictable and localized nature of the loading state. The speaker notes provide a step-by-step explanation of the slide's elements and key takeaways about using Suspense for efficient loading management in React applications.
Design System Overview
Create a slide showcasing a design system, including tokens (typography, color), components (button, input, card), states (hover, focus, error), and light/dark mode previews. The slide should have a title 'Design System' with a subtitle 'Foundations and key components'. The design system uses Inter font with size 16 and line height 24 for the body text. The primary color is blue. Include speaker notes explaining the design system's purpose to reduce decision fatigue and speed up delivery while maintaining quality. Also, explain how tokens, components, states, and themes work together. The layout should be clean and informative, suitable for a presentation.
Accessibility by Design in Web Development
Create a slide about building accessible web applications from the ground up. The slide should emphasize practical techniques and best practices for incorporating accessibility into the development process. It should cover topics like semantic HTML, proper labeling, focus management, keyboard navigation, and ARIA attributes. The target audience is web developers, and the tone should be informative and encouraging. Include a code example demonstrating best practices for associating labels with inputs and managing focus traps.
React's Render Workflow: A Step-by-Step Breakdown
Create a slide explaining the render workflow in React, including the render, diff, and commit phases. It should be visually appealing and easy to understand. The slide should also include speaker notes explaining the process in more detail, highlighting the Fiber architecture for cooperative scheduling and how it impacts rendering performance. It should also mention the importance of this mental model for debugging. The target audience are developers who have some understanding of React.
Tech Stack & Architecture Overview
Create a slide visualizing the tech stack and architecture for a web application. The frontend uses React, TypeScript, Vite, and Tailwind CSS. The backend is built with Node.js and NestJS, using a REST API. PostgreSQL is the database, accessed via Prisma. Authentication is handled with OAuth2, JWT, and Auth0. PostHog is used for analytics. The CI/CD pipeline involves GitHub Actions, Docker, and Fly.io. The architecture diagram should show the client (React SPA), API (NestJS REST), and database (PostgreSQL). It should also highlight integrations with Stripe and SendGrid, emphasizing that these external services interact with the API, not directly with the client or database. The flow should be clearly illustrated: Client → API → Database, with integrations decoupled and accessible through the API.
Effective React Testing Strategies for Developers
This slide is part of a presentation on testing React applications effectively. It emphasizes the importance of finding a balance between confidence and development speed. The slide content focuses on using practical tools and techniques like React Testing Library, Jest/Vitest, and component/integration tests over brittle snapshot tests. It also highlights the need for performance regression testing using React Profiler. The visual aid uses a pyramid to represent the testing layers: unit, component, and integration, emphasizing a focus on component and integration tests for optimal results. Finally, a code example demonstrates a typical test using React Testing Library, emphasizing its simplicity and focus on user interaction and visible outcomes.
Why React Still Matters: A Deep Dive into its Relevance
Create a slide explaining why React is still a relevant and powerful JavaScript framework for front-end development in 2024. Highlight its key strengths, including stability, ecosystem, performance, and community, while acknowledging its maturity. The slide should be visually appealing and engaging for a technical audience familiar with web development concepts.
Modern Tooling and Delivery for Fast Web Experiences
This slide focuses on explaining how modern web development tools and delivery techniques contribute to faster and more efficient user experiences. It covers the use of Vite and Next.js for optimized development pipelines, including features like Hot Module Replacement (HMR) and smart caching. The core concept of code-splitting, both at the route and component level, is highlighted, with a specific emphasis on dynamic imports and React's lazy() function combined with Suspense for on-demand loading of UI elements. The delivery aspect is also explored, covering SSR, streaming, and edge rendering for low latency, and touching upon bundling strategies like tree-shaking, vendor chunk splitting, and critical path prefetching to improve metrics like Time To First Byte (TTFB) and Time To Interactive (TTI). The slide also aims to visually showcase code examples demonstrating the use of lazy() and Suspense alongside a diagram illustrating the flow from routing to hydration, highlighting the progressive nature of modern web experiences.
Business Outcomes & Key Performance Indicators (KPIs)
Create a slide showcasing the positive impact of a product or service on core business metrics. Present four key performance indicators (KPIs) with before-and-after values, highlighting improvements. Include a trendline for each KPI to visualize the progress. Add a testimonial from a VP of Product reinforcing the positive results. The KPIs should include Activation rate, Time-to-Value, Retention (90-day), and Support tickets / 1k. Use a clean and modern design with clear data visualization. The slide should be suitable for a business presentation or report.
Dashboard Design Breakdown: Focus, Clarity, and Action
Create a slide demonstrating the key design principles of a dashboard UI. The dashboard should focus on delivering quick insights, guiding users with one clear callout color (e.g., indigo), and a simple layout with minimal clutter. The main components to highlight are an insights/metrics trend area, a primary call-to-action button (e.g., “Create report”), and a recent activity feed. The slide should include animated annotations to guide viewers through the key elements. Speaker notes should explain the design choices: grayscale for calm, one accent color for guidance, and a simple structure to shorten time to insight.
React Keys and Reconciliation: Optimizing Performance with Stable Identifiers
This slide explains the importance of using keys in React for efficient reconciliation. It visually demonstrates how stable keys, unlike array indices, help React identify and preserve component state during re-renders, especially when list items are reordered. The key concept is that stable identifiers prevent unnecessary component unmounts and remounts, leading to better performance and user experience. The slide shows a 'before' and 'after' comparison of a list rendered with array indices as keys versus stable IDs. This visualization emphasizes the benefits of stable keys in reducing re-rendering overhead. The goal is to educate developers on the proper usage of keys in React for optimal performance.

Alex DelaneyPage 9 of 11

Alex Delaney
Page 9 of 11