Introduction Are you having trouble with a process locking port 3000 (or essentially any other port) on your Mac? Here's how you can find and kill the process! Finding the process To find the process, first open the Terminal app on your Mac. You can ...

Introduction Laravel is a free, open-source PHP web framework, created by Taylor Otwell and intended for the development of web applications following the model–view–controller (MVC) architectural pattern and based on Symfony. Some of the features of...

Introduction PostgreSQL is a powerful, open-source database system. It is a relational database management system (RDBMS) based on the SQL language. PostgreSQL is one of the most popular database systems in the world. It is the go-to database for man...

Introduction The jsonb_array_elements function returns a set of rows, one for each element of the input array. The input array can be a top-level array or a nested array. In this tutorial, we will learn how to flatten JSON array in SQL using jsonb_ar...

Introduction Hacktoberfest is a month-long event where people are awarded for contributing to open source projects 🙌. In order to participate you need to sign up here and then Submit four pull requests (PRs) to a GitHub repo tagged with the hacktober...

Introduction npm is a package manager for Node.js. It is used to install and manage packages for your JavaScript projects. npm is open source and was initially released in 2009. The npm repository is a collection of open-source packages and tools for...

Introduction Similar to a Bash script where you can pass arguments to a script using the $1 syntax, you can also pass arguments to a Node.js app. In this quick tutorial, you will learn how to pass arguments to a Node.js app using the process.argv arr...

Introduction WebSockets allow you to send and receive data over a network without having to use a traditional HTTP protocol. Using WebSockets, you can build a real-time application. For example, you can send messages to other users without having to ...

Introduction This is a self-contained example of a real-time chart powered by Deno, Web Sockets, Chart.js, and Materialize. Deno is a simple and secure runtime for JavaScript and TypeScript that uses V8. Deno, just like Materialize, is also written i...

Introduction Materialize is a streaming database for real-time analytics. It was launched in 2019 to address the growing need for the ability to build real-time applications easily and efficiently on streaming data so that businesses can obtain actio...