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APIs are key components of modern software applications, helping different systems and services communicate. And in this course, Dan teaches you how to keep your APIs secure. You'll learn about governance, testing, and monitoring, how attackers exploit API vulnerabilities, &

Sometimes, when you select something in a dropdown, it unlocks a new set of options in another. These are called dependent dropdown menus, and Timmy shows you how to build them. You'll set up your project in React, structure & use the components, and learn how to handle

You may have wondered how a computer knows which program's output to display - especially if more than one's running. Well here, Syeda Maham Fahim teaches you about process IDs and why they're important. You'll learn what PIDs do and how to use them to manage your processes.

Asynchronous programming lets some code run in the background while other code continues to execute. And in this in-depth guide, Isaiah Clifford Opoku explains how async programming works in TypeScript. You'll learn how promises, async/await, and callbacks work and when to use each of

Many of the world's top universities offer some of their Computer Science courses online - for free. And in this article, Manoel lists 1200 of them you can check out. You'll find courses on everything from databases, data structures, and information systems, to machine

Having good database documentation helps make your projects more scalable. And in this guide, Patrick shows you how to use dbdocs + DBML to create docs. You'll install the tools, export your DB schema to DBML, make edits, and generate the documentation. freecodecamp.org/news/create-da…

Object-oriented programming is a programming paradigm that's based on objects and classes. And what better way to learn about it than by building a project? Here, @_Jayky teaches you key OOP concepts in Python while building an online banking system. freecodecamp.org/news/how-to-bu…

A Content Delivery Network is a system of servers that delivers web content to users. It reduces latency, speeds up load times, and helps distribute network traffic. Here, Timmy shows you how to use CDNs to improve performance in your projects. freecodecamp.org/news/how-cdns-…

The Domain Name System translates domain names (like example.com) into IP addresses (like 192.0.2.1) so you can easily access websites. And in this guide, Dhruv explains how DNS works. You'll learn about the resolution process, caching, resolvers, domain

Load balancers help manage traffic coming into your app so no single server gets overloaded. And in this in-depth guide, Prince Onukwili explains how load balancers work. He examines Azure Application Gateway and Azure Load Balancer and helps you decide when to use each one.

One key part of building applications is breaking them down into various parts, or components. And this is important in both traditional and low-code development methods. In this guide, Brandon shows you how to extend Power Apps with reusable components by building a custom

Sometimes you may need to use math equations in Google Docs. And in this tutorial, Vikram Aruchamy shows you how. You'll learn how to use Google Doc's built-in editor, type LaTeX in directly, insert equations with the Auto-LaTeX add-on, & more. freecodecamp.org/news/write-mat…

If you've been wanting to start learning Spanish, this course is for you. You'll dive into A1-level basics like key verbs, important grammatical structures, and different verb tenses. You'll also practice terms you'll use in real-world conversations, learn how to talk about

You've probably heard a lot about how important it is to have a strong password. Well, this is because there are many ways attackers can try to break into your accounts online. In this article, Manish goes over the most common ways they can do this, and how to protect yourself.

One of TypeScript's main benefits is that it adds static typing to JavaScript. This makes your code less error-prone - and lots of devs have started using it. In this hands-on course, you'll learn TypeScript basics and build small projects as you go. freecodecamp.org/news/learn-typ…

Java has been a popular language for the past two decades. Banking software, e-commerce sites, Android apps & more can all be written in Java. In this course you'll learn the basics of Java, from variables and loops to object-oriented programming (OOP). freecodecamp.org/news/learn-the…

As you improve your coding skills, you'll want to learn how to write Clean Code. This means writing code that's readable, clear, and well-organized - and that anyone can understand. In this quick guide, Nitin shares some simple tips to help you write cleaner, more maintainable

A Cloud Development Environment is a cloud-hosted workspace where you can write, test, & deploy code without relying on local machines. And in this guide, Gursimar Singh compares three popular options to help you pick one. He explains why using a CDE can be helpful & compares the

If you're a developer, your text editor is likely one of the most important tools in your toolkit. And Vim is popular among developers for its speed and efficiency. In this in-depth guide, Tanishka Makode walks you through how to use Vim and talks about modes, common commands,

When you're building an application, you'll want to make sure to control who has access to any sensitive data. There are a few ways to do this – and Samhitha explores two of them in this handbook. She walks you through using CASL, a popular open source library, and then