React

13 Posts

React is a free, open-source JavaScript library created by Meta in 2013 for building user interfaces. It breaks pages into reusable components and uses a virtual DOM to update only what changes, keeping rendering fast. Hooks let you manage state and side effects in plain functions, and a huge ecosystem covers routing, data fetching, and styling. It handles only the view layer, so bigger apps often reach for frameworks like Next.js to fill the gaps.

Failed to fetch dynamically imported module after a deploy

Fix 'Failed to fetch dynamically imported module' in React after a deploy: why lazy() can't retry, what the browser caches, and the fix that holds up.

Why your Tailwind classes aren't showing up

The class is right there in the DOM and nothing happens. Here's why Tailwind never saw it, and four fixes that actually hold up in production.

Why Tailwind Won't Generate the Class You Just Wrote

The class is sitting right there in your JSX and the browser still ignores it. Here's why Tailwind's scanner can't see it, and how to fix it for good.

Why React says "Invalid hook call" when your hooks are fine

Invalid hook call fires even when your hooks look correct. Every real cause, from duplicate React and npm link to version drift, plus the actual fix for each.

Too many re-renders: the fix that actually sticks

The exact line React throws before the tab freezes Uncaught Error: Too many re-renders. React limits the number of

Too many re-renders: why React limits you to 25

Uncaught Error: Too many re-renders. Every real cause, the exact React 19.3 stack trace, and why the retry loop stops at 25 passes.

Next.js params Should Be Awaited: Causes and Fixes

Route "/[slug]" used `params.slug`. `params` should be awaited before using its properties — here's exactly why Next.js 15+ broke synchronous params, and how to fix every case.

React Too Many Re-renders: Causes and Fixes

React error: 'Too many re-renders. React limits the number of renders to prevent an infinite loop.' Here's exactly why it fires and how to fix it.

Next.js params Is a Promise: Fix the Async Params Error

`params` is a Promise and must be unwrapped with await or React.use() before accessing its properties — the exact fix for Next.js 15 and 16 App Router.

Next.js params/searchParams: Fixing the Promise Error

Next.js turned params and searchParams into Promises. Here's the exact warning text, why v16 makes it crash instead of warn, and how to fix it for good.