#Patterns

Regex looked like alien language until I learned 20 practical patterns. Now text processing that took 50 lines fits in one.

Switched from Redux to Zustand and cut boilerplate by 90%. But using it properly requires understanding some key patterns.

Managing isLoading, isError, and data separately creates impossible states. Discriminated unions make illegal states unrepresentable.

Dealing with union types where API responses could be success or error? Type guards changed how I handle runtime type checking entirely.

One typo in a component crashes the entire page? Learn how to use Error Boundaries to isolate crashes and show fallback UIs gracefully.

Passing a ref to a child component isn't as simple as passing a prop. We dive into why React throws warnings, how `forwardRef` acts as a tunnel for DOM access, and how `useImperativeHandle` allows you to expose a controlled API instead of the raw DOM node, enforcing better encapsulation.

When you break a monolith into microservices, you lose ACID transactions. How do you ensure data consistency across boundaries? We explore the limitations of Two-Phase Commit (2PC) and dive deep into the Saga Pattern, Event Consistency, and practical implementation strategies like Choreography vs Orchestration.