LeetCode Interval Problems: Merge, Insert, and Schedule
Master interval problems on LeetCode: sorting, merging, inserting, and scheduling with templates, visual walkthroughs, and complexity analysis.
·6 min read · #leetcode#intervals#algorithms
#patterns
30 posts · page 1 of 1
LeetCode Two Pointer Patterns: The Complete Guide
Master every two pointer pattern for LeetCode: opposite-end, same-direction, and fast/slow pointers with templates, complexity analysis, and 15+ mapped problems.
·7 min read · #leetcode#two-pointers#algorithms
Real-World Airflow Patterns for Production Pipelines
Idempotent pipelines, backfilling, late data handling, error patterns, multi-environment setups, and common anti-patterns to avoid in Airflow.
·15 min read · #airflow#patterns#production
Competitive Programming Patterns: 15 Essential Techniques
The 15 most common competitive programming patterns — prefix sums, difference arrays, coordinate compression, meet in the middle, sqrt decomposition, sparse tables, binary lifting, and Mo's algorithm.
·12 min read · #dsa#competitive-programming#patterns
Binary Search Patterns: Search Space, Boundaries, and Rotated Arrays
Master binary search patterns for LeetCode including search space reduction, boundary finding, rotated array search, and practical templates.
·8 min read · #leetcode#binary-search#algorithms
Dynamic Programming Patterns: 1D, 2D, Memoization, and Tabulation
Master dynamic programming with 1D and 2D patterns, memoization vs tabulation approaches, and solutions to classic LeetCode DP problems.
·9 min read · #leetcode#dynamic-programming#algorithms
Greedy Algorithm Patterns: Interval Scheduling, Activity Selection, and More
Master greedy algorithm patterns for LeetCode including interval scheduling, activity selection, jump games, and proving greedy correctness.
·7 min read · #leetcode#greedy#intervals
Sliding Window Patterns: Fixed, Variable, and Two Pointer Variants
Master the sliding window technique with fixed and variable window patterns, two pointer variants, and reusable templates for solving LeetCode problems.
·8 min read · #leetcode#sliding-window#two-pointers
Go Concurrency: Fan-Out, Pipeline, and Worker Pool
Master advanced Go concurrency patterns including fan-out/fan-in, pipelines, and worker pools with practical examples and production-ready code.
·10 min read · #go#concurrency#goroutines
React Custom Hooks: Patterns for Reusable Logic
Master React custom hooks with practical patterns for data fetching, form handling, debouncing, and more. Learn when and how to extract reusable logic.
·8 min read · #react#custom-hooks#hooks
TypeScript Generics: Advanced Patterns and Constraints
Master advanced TypeScript generics patterns including conditional constraints, recursive types, generic factories, and type-safe builder patterns with examples.
·8 min read · #typescript#generics#advanced
Go Iterator Patterns With Range-Over-Func
Explore Go's range-over-func iterators introduced in Go 1.23, including push and pull patterns for custom sequences and lazy evaluation.
·6 min read · #go#iterators#range-over-func
Java CompletableFuture Patterns for Async Code
Master CompletableFuture composition patterns including chaining, combining, error handling, timeouts, and async pipeline design in Java.
·6 min read · #java#completablefuture#async
JavaScript Error Handling Patterns and Best Practices
Master JavaScript error handling with custom error classes, async error patterns, Result types, error boundaries, and strategies for robust production code.
·6 min read · #javascript#error-handling#async
JavaScript Promise Combinators: all, allSettled, race, and any
Master all four JavaScript Promise combinators -- Promise.all, allSettled, race, and any -- with practical patterns for concurrency, timeouts, and resilience.
·7 min read · #javascript#promises#async
Next.js Middleware Patterns for Production Apps
Practical middleware patterns for Next.js including authentication, A/B testing, geolocation routing, bot detection, and request logging.
·7 min read · #nextjs#middleware#edge
React Compound Components: Flexible APIs Without Prop Drilling
Build flexible, composable React components using the compound components pattern with Context, implicit state sharing, and controlled inversion.
·6 min read · #react#patterns#component-design
React Higher-Order Components vs Hooks: Migration Guide
Compare Higher-Order Components and hooks in React with side-by-side examples, migration strategies, and guidance on when each pattern still makes sense.
·6 min read · #react#hooks#hoc
Building State Machines with useReducer in React
Implement finite state machines using only React's useReducer hook: explicit states, guarded transitions, and elimination of impossible UI states without libraries.
·8 min read · #react#useReducer#state-machines
React Error Boundary Patterns and Recovery Strategies
Master error boundary patterns in React including granular boundaries, recovery strategies, logging, and the react-error-boundary library.
·5 min read · #react#error-handling#patterns
Pattern Matching in Java
Master Java pattern matching with instanceof, switch expressions, record patterns, and guarded patterns for cleaner, more expressive conditional logic.
·8 min read · #java#patterns#intermediate
Pattern Matching in Rust
Master Rust's pattern matching — match expressions, if let, while let, destructuring, guards, and patterns in function parameters.
·4 min read · #rust#patterns#intermediate
The Circuit Breaker Pattern Explained
Use circuit breakers to stop cascading failures, with state transitions, timeouts, and tuning advice for production microservices.
·3 min read · #backend#resilience#patterns
Soft Deletes vs Hard Deletes: A Practical Guide
Compare soft and hard deletes across recovery, compliance, indexing, and query complexity to pick the right deletion strategy.
·3 min read · #backend#database#patterns
Node EventEmitter Patterns
EventEmitter is the backbone of Node. Here are the patterns that make it useful in real systems and the mistakes that turn it into a footgun.
·5 min read · #node#events#patterns
React Render Props vs Hooks
Compare render props and hooks as two ways to share reusable logic in React, with examples, mental models, and guidance on which pattern fits modern codebases.
·4 min read · #react#hooks#render props
React State Colocation Patterns: Where State Should Actually Live
A practical guide to deciding where state belongs in a React app, with patterns for lifting, colocating, and splitting state for performance and clarity.
·4 min read · #react#state#architecture
Tailwind Component Extraction Strategies
When to keep utilities inline, when to extract a component, and how to use @apply, variants, and cva without painting yourself into a corner.
·4 min read · #tailwind#components#patterns
The Test Data Builder Pattern: Readable Fixtures at Scale
Stop drowning in fixture noise. Learn the Test Data Builder pattern to create clear, intention-revealing test data that survives schema changes.
·4 min read · #testing#patterns#fixtures
TypeScript Enums vs Union Literals
Compare TypeScript enums with string union literals. Learn the trade-offs in runtime cost, exhaustiveness, ergonomics, and when each is the right choice.
·5 min read · #typescript#enums#union-types