#performance Development Tutorials & Tips | Roast Dev

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Building a React Hook That Predicts User Navigation Based on Hover Patterns

Imagine if your app could prefetch pages based on what the user is likely to click — before they actually click it. In this guide, we’ll build a React hook that predicts user navigation based on h...

26.04.2025 0 Read More

Tutorial 38: 🚀 Using NSCache and Disk Caching to Optimize Performance

(Or How to Launch Your App Performance into Orbit)⸻ 🌟 Introduction Imagine you’re running a Mission Control app for astronauts 🚀 — You don’t want slowdowns when they need critica...

26.04.2025 0 Read More

How to Profile a NestJS Application

When building a NestJS application, it’s not enough for it to just work, it needs to be fast, efficient, and stable. To achieve that, we must go through profiling, the process of understanding how o...

26.04.2025 0 Read More

Optimizing Redux for Massive State Trees with Entity Adapters

When your Redux store starts ballooning with deeply nested data (think thousands of items, cross-referenced entities), basic reducer logic quickly becomes painful. That's where Redux entity adapters s...

27.04.2025 0 Read More

Handling Optimistic Updates in Redux Toolkit (Without Third-Party Libraries)

Waiting for server confirmations before updating the UI feels sluggish. In real-world apps, users expect near-instant feedback. Enter optimistic updates: immediately reflect changes in the UI while th...

27.04.2025 0 Read More

Trash Talk: Understanding Python’s Garbage Collector

When you write a Python program, you probably don’t spend much time thinking about what happens to all the stuff you stop using. You create variables, objects, data structures... and when you’re d...

27.04.2025 0 Read More

Boosting Your Node.js Applications with the Cluster Module

Node.js is known for its speed and efficiency, but it also uses a single-threaded execution model. This means that, by default, a Node.js application uses only one CPU core, leaving the rest of the se...

27.04.2025 0 Read More

Kafka Producers Explained: Partitioning, Batching, and Reliability

A Kafka producer is the entry point for all data written to Kafka. It sends records to specific topic partitions, defines batching behavior, and controls how reliably data is delivered.This post cover...

28.04.2025 0 Read More

Boost Angular Performance: Real-World Optimization Case Study

TL;DR Performance optimization often comes down to small, well-measured improvements. In this article, we take a concrete Angular use case — rendering thousands of live-updating components — and...

28.04.2025 0 Read More

EXTRA: Fibonacci Sequence

The Fibonacci sequence is a series where each number is the sum of the two preceding ones: ⛶0, 1, 1, 2, 3, 5, 8, 13, 21, 34, ...The general formula is: ⛶F(n)=F(n−1)+F(n−2) Simple Fibon...

28.04.2025 0 Read More

Building a React Hook That Predicts User Navigation Based on Hover Patterns

Tutorial 38: 🚀 Using NSCache and Disk Caching to Optimize Performance

How to Profile a NestJS Application

Optimizing Redux for Massive State Trees with Entity Adapters

Handling Optimistic Updates in Redux Toolkit (Without Third-Party Libraries)

Trash Talk: Understanding Python’s Garbage Collector

Boosting Your Node.js Applications with the Cluster Module

Kafka Producers Explained: Partitioning, Batching, and Reliability

Boost Angular Performance: Real-World Optimization Case Study

EXTRA: Fibonacci Sequence

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