freeCodeCamp

1 month ago | freecodecamp.org | Alex Tray

Think about it: you're sitting there enjoying your morning coffee, reading the headlines when again another data breach is making headlines. Millions of users' personal information – gone. You can't help but cringe as a developer at the prospect. Could it happen on your watch? The reality is, keeping personal data safe isn't something you should be doing because it's good practice – it's something you have to do.

2 months ago | freecodecamp.org | Alex Tray

In this tutorial, I’ll walk you through the process of sending emails in Python using two different methods: The traditional SMTP setup with the built-in ‘smtplib’ module. Mailtrap email API via Mailtrap’s official SDK. If you’re unfamiliar with the tools and workflows, SMTP (Simple Mail Transfer Protocol) is the protocol commonly used for sending emails via apps and websites.

2 months ago | freecodecamp.org | Rob Walters

AWS Lambda is a computing service that enables you to run arbitrary code functions without needing to provision, manage, or scale servers. It’s often used in the logic tier of a multi-tier architecture to handle tasks such as processing files in S3 or performing CRUD operations on a database. AWS also offers an API Gateway, allowing developers to invoke AWS Lambda functions, which provides enhanced security and performance features like rate limiting.

Feb 26, 2025 | freecodecamp.org | Tapas Adhikary

JavaScript has been a popular programming language for almost 30 years now. Whether you’re using it for web applications, mobile applications, backend services, or even desktop applications, you’ll find that JavaScript has deep roots. Many of the libraries and frameworks you likely use to build modern web applications are based on JavaScript, like React.js, Next.js, Angular, Solid.js, Vue.js, and Node.js to name a few.

Feb 24, 2025 | freecodecamp.org | Alex Tray

Let’s start with an interesting fact: according to research done by Akamai, a 1-second delay in loading a website’s page can decrease the conversion rate by 7%. We are currently living in a fast-paced world, where time is money for everyone. People expect their favorite websites to load lightning-fast. A slow loading speed will not only make them go to the competitor but will also hurt the website's ranking in the SERP. But the main question is, who’s the culprit?