The Mento Blog

Practical React guides for developers who are tired of being stuck.

ReactPerformanceuseMemouseCallback

React Performance Optimization: A Practical Guide for Junior Developers

A practical React performance optimization guide for junior developers covering re-renders, useMemo, useCallback, React.memo, and profiling before optimizing.

April 22, 2026·10 min read
ReactState ManagementHooksRedux

React State Management Explained: When to Use useState, useContext, and Redux

A practical React state management tutorial for junior developers covering the local-to-global ladder, useState vs useContext, and when Redux or Zustand is actually worth it.

April 21, 2026·10 min read
ReactuseEffectHooksJunior Dev

The Complete useEffect Guide for Junior React Developers (with real examples)

A practical React useEffect tutorial covering the dependency array, cleanup functions, and three real examples for junior developers.

April 20, 2026·9 min read
ReactHooksJunior DevPerformance

Top 5 React mistakes junior developers make (and how to fix them fast)

A practical breakdown of five common React bugs: useEffect dependency issues, direct state mutation, unnecessary effects, prop drilling, and missed memoization.

April 19, 2026·8 min read
ReactDebuggingJunior Dev

How to get unstuck in React (when Stack Overflow isn't enough)

Props drilling, stale closures, useEffect dependency arrays — the React pitfalls that send every junior dev to Stack Overflow at 11pm. Here's how to actually get unstuck.

April 18, 2026·6 min read