In this tutorial, you will build a GraphQL-powered Ruby on Rails API for taking notes. When you are finished, you will be able to create and view notes from the API using GraphQL.

Even with the growing popularity of cloud services, the need for running native applications still exists. In this tutorial, you'll containerize Mozilla Thunderbird, an email client, using Docker. Afterwards, you'll s...

In this guide, you will set up a few CSS lines to create a scrolling parallax effect on a web page.

We can use the built-in function map() to apply a function to each item in an iterable (like a list or dictionary) and return a new iterator for retrieving the results. In this tutorial, we'll review three different w...

Since Node.js instances create a single process with a single thread, JavaScript operations that take a long time to run can sometimes block the execution of other code. A key strategy to work around this problem is t...

Arrow functions are a new way to write anonymous function expressions in JavaScript, and are similar to lambda functions in some other programming languages like Python. They differ from traditional functions in the w...

This tutorial walks you through configuring a MongoDB installation to securely allow access from a trusted remote computer. This will involve updating your firewall rules to provide the remote server access to MongoDB...

MongoDB doesn't have authentication enabled by default, meaning that any user with access to the server where the database is installed can add and delete data without restriction. In order to secure this vulnerabilit...

MongoDB is an open-source document database used commonly in modern web applications. It is classified as a NoSQL database because it does not rely on a traditional table-based relational database structure. Instead,...

In this tutorial, you will try "fooling" or tricking an animal classifier. As you work through the tutorial, you'll use OpenCV, a computer-vision library, and PyTorch, a deep learning library. By the end of the tutori...

Python 3's subprocess module can be used to run external programs and read their outputs in your Python code. subprocess includes several classes and functions, but in this tutorial we'll cover one of subprocess's mos...

MySQL is an open-source database management system, commonly installed as part of the popular LAMP (Linux, Apache, MySQL, PHP/Python/Perl) stack. It implements the relational model and uses SQL (Structured Query Langu...

MySQL is an open-source database management system, commonly installed as part of the popular LAMP (Linux, Apache, MySQL, PHP/Python/Perl) stack. It implements the relational model and uses SQL (Structured Query Langu...

etcd is a distributed key-value store relied on by many platforms and tools, including Kubernetes, Vulcand, and Doorman. Within Kubernetes, etcd is used as a…