Docker is an Open Source application that allows administrators to create, manage, deploy, and replicate applications using containers. Flask is a web micro-framework that is built on Python. In this tutorial, you wil...

Learn how to use JavaScript's btoa() and atob() to convert strings from binary data to ASCII and vice versa.

__dirname is an environment variable that tells you the absolute path of the directory containing the currently executing file. In this article, you will explore how to implement __dirname in your Node.js project.

In this tutorial, you will create a countdown timer. This timer will help you learn how to leverage React hooks to update state and manage side effects in a React component.

In this guide, you will build a Python application using the Flask microframework on Ubuntu 18.04. The bulk of this article will be about how to set up the Gunicorn application server and how to launch the applicatio...

Being able to effectively perform mathematical operations in programming is an important skill to develop because of how frequently you’ll be working with numbers. This tutorial will go over many different operators t...

In this article, we will reference an example of an application that displays a list of products to understand how to use query parameters.

Axios is a lightweight, promise-based HTTP client. In this article, you will explore examples of how to use Axios to access the popular JSON Placeholder API within a React application.

In this tutorial, you will learn how to set up the initial foundation for a blog website with connections to a MySQL database. This will involve creating the skeleton structure of the blog web application using django...

DRY is a programming strategy that stands for "Don't Repeat Yourself". It encourages code re-usability through modular architecture. Vue.js includes several strategies to modularize and re-use repeated snippets of cod...

Lifecycle hooks are a window into how the library you're using works behind-the-scenes. Lifecycle hooks allow you to know when your component is created, added to the DOM, updated, or destroyed. This article will intr...

ESLint is a linter that you can integrate into your Visual Studio Code setup in order to ensure code integrity. In this tutorial, you will set up ESLint on Visual Studio Code and implement a custom configuration to de...

Use Node.js and the node-cron library to schedule jobs to manage logs, back up databases, and send emails.

Vault, by Hashicorp, is an open-source tool for securely storing secrets and sensitive data in dynamic cloud environments. Packer and Terraform, also developed by Hashicorp, can be used together to create and deploy i...

Vault is an open-source tool that provides a secure, reliable way to store and distribute secrets like API keys, access tokens, and passwords. Software like Vault can be critically important when deploying application...

On Ubuntu, by default, the Nginx web server stores its documents in /var/www/html, which is typically located on the root filesystem with the rest of the operating system. Sometimes, though, it’s helpful to move the d...

Certbot offers a variety of ways to validate your domain, fetch certificates, and automatically configure Apache and Nginx. In this tutorial, we'll discuss Certbot's standalone mode and how to use it to secure other t...

In this tutorial, you will create both GET and POST requests using the Fetch API.

In this tutorial, you will learn how to use CSS to customize scrollbars to support modern browsers.