This weekend build some serious skills. 💪🛠️ freeCodeCamp's new JavaScript Algorithms and Data Structures cert just went live. It's a FREE 300-hour interactive curriculum. Here are this week's 5 resources worth your time. 1. freeCodeCamp just launched our new JavaScript Data

For today's coding challenge, you'll work with some 2D arrays to update the inventory of a store. Check it out on the freeCodeCamp mobile app.

They gaslight you on vaccines, global warming, DEI, ACA, Medicaid for everyone, USAID, etc. Its graft everywhere, all the time. https://t.co/Dlu4hOhYLl

If you want to practice coding a full-stack app, this course is for you. You'll use Next.js & its app router, Tailwind CSS, Open AI's API + other popular tools. By the end you'll have an AI-powered email SaaS with Stripe integration, deployed on Vercel. https://t.co/aElqscJDwj

If you want to start integrating AI capabilities into your apps, here's a fun and practical tutorial for you. In it, @atuohaa walks you through building an AI-powered cooking assistant app. You'll use Flutter and Gemini and learn how to set permissions, manage assets, build a

Polars is an open source Python library that'll help you wrangle your data. It's fast and memory-efficient, and its syntax is similar to Pandas. In this guide, Sara helps you get up and running with Polars so you can use it to analyze all your data. https://t.co/bLNK2aZWNK

In 2000, the S&P 500 had an elevated trailing P/E of 26, well above its long-term avg. of 14. For the next 11 years, the S&P 500 delivered zero returns! The current S&P 500 trailing P/E is 30 – even higher than 2000. History rhymes. For standardized performance visit our website.

When you're deploying AI models, you'll want them to respond as quickly as possible - for users all over the world. This means you need a global AI architecture that leverages a worldwide network to deploy and manage services,. In this guide, @amiynarh teaches you how to reduce

Announcing freeCodeCamp's FREE English for Developers level A2 certification. 📜 Now you can learn English grammar, vocab, reading, listening – all with characters and stories set in a Silicon Valley tech company. Coursework, exam, and verified certs are all live today.

Neural Machine Translation takes a whole sentence and processes (ie translates) it using one integrated model. And in this course, you'll learn all about the history and evolution of NMT via hands-on PyTorch replications of key papers. You'll learn about phrase representation,

For today's coding challenge, you'll code a Roman numeral builder. It'll take an integer and give you its value in Roman numerals. Pretty neat party trick! Check it out on the freeCodeCamp mobile app.

The latest Microsoft Research Forum episode is now available on-demand. Explore purposeful research and its real-world impact.

There's a new vulnerability with React Server Components that you should know about and fix. It happens because of the complex way React handles serialization (and an overly lax "flight" protocol). In this guide, Arunachalam explains how to protect yourself from the

The freeCodeCamp community just released our new JavaScript certification! It has hundreds of hours of interactive lessons, workshops, and quizzes, plus a big exam at the end. You'll learn all the key JS concepts you need to know and put them into practice right away. Go check

If you're working at a coffee shop - or somewhere else not your home - you'll likely be connecting to public wifi. But this can be dangerous if you don't take steps to protect yourself. In this guide, Manish explains why using public wifi is risky - and what to do to stay safe.

Sometimes you'll need to sort things by date in your projects. And there are various ways to do this in JavaScript - some more efficient than others. In this guide, @BrandonWoz discusses the slow way to do this (converting date strings to Date objects inside the sort function)

Christmas gifts for your science enthused friends and family. Many of the items offer special discounts of up to 40%! But hurry — these discounts only last through December 15, 2025.

When you're learning to code in JavaScript, you'll likely use functions for many things. And functions are powerful, but they're not the answer to everything. In this handbook, @sprucekhalifa teaches you Object-Oriented Programming in JS & covers objects, prototypes, classes, &

For today's coding challenge, you'll be given a string that may or may not include some bold text formatted in markdown. Your job is to return the equivalent HTML string. You can find it on the freeCodeCamp mobile app.

Managing servers, databases, and user logins can be complex and time-consuming. And sometimes it's useful to have a tool that handles this for you. Enter Backend as a Service. In this guide, @ijaydimples explains how BaaS tools work, when they're most useful, some popular

When you're working with cloud infrastructure, security should be top of mind. And in this guide, @ijaydimples covers some of the key cloud security concepts you'll need to know. You'll learn about root vs IAM users, the Shared Responsibility model, user permissions, and lots

CMS is proposing a rule change that betrays the vision of President Trump and Dr. Oz for American healthcare and must be stopped. Join us in ensuring access to critical items for Medicare beneficiaries is maintained.

For today's coding challenge, you'll return the most frequent element in an array. Check it out on the freeCodeCamp mobile app.

Most business apps capture tons of data. But when you need to get insights from that data, you have to go elsewhere to an analysis tool. In this article, @manishmshiva explains what embedded analytics are and how they can make your app more valuable and useful.

You may have heard about microservices and how they can help with back-end development. Well, microfrontends represent a similar concept for front-end projects - and Rahul teaches you about them here. You'll learn about different approaches to creating microfrontends so you can