CodPen.ir
BlogGuidePublic projectsPricing
Open editor
BlogGuidePublic projectsPricing

CodPen technical journal

Ideas and practical guides for building better web projects

Clear, production-minded articles about JavaScript, TypeScript, React, Next.js, AI-assisted coding, and the CodPen workflow.

Getting started with the CodPen online editor
Featured articleGetting started

Getting started with the CodPen online editor

From choosing a template to creating files, using live preview, and saving your first project—a practical path into CodPen.

By CodPen.ir1 min read
Read article

CodPen Blog

Latest articles

Build your first React project from scratch
React1 min read

Build your first React project from scratch

Build a small but realistic interface with components, props, and state while learning a clean React project structure.

Read article
JavaScript or TypeScript: which should you choose?
Programming languages1 min read

JavaScript or TypeScript: which should you choose?

Compare the practical tradeoffs in startup speed, maintenance, developer experience, and team size.

Read article
Essential Next.js and App Router capabilities
Next.js1 min read

Essential Next.js and App Router capabilities

Understand Server and Client Components, routing, metadata, and loading UI through one practical mental model.

Read article
Using AI safely for code generation
Artificial intelligence1 min read

Using AI safely for code generation

Learn to write precise requests, review diffs, and benefit from AI without handing over control of your project.

Read article
A reliable frontend debugging workflow
Debugging1 min read

A reliable frontend debugging workflow

Replace guessing with a repeatable process: reproduce, narrow the scope, and use console and network evidence to find the root cause.

Read article
CodPen.ir

A browser workspace for learning, building, reviewing, and sharing front-end projects.

© 2026 CodPen.ir · All rights reserved.