You may want to split a JavaScript string into a list of words. JavaScript doesn’t provide a native words method. Yet, it comes with the necessary functionality to build this method yourself. This tutorial shows you how to split a given JavaScript string into an array of words. {{outline} …

Base64 is a binary-to-text encoding scheme used to transport data. The encoding is necessary when the transfer medium is not able to handle binary data. This binary data is then translated to a text representation (base64) and transferred as text. This tutorial shows you how to base64-encode and -decode a …

Deleting keys from an object may happen in a handful of situations. Like, in case a request contains a key-value pair that isn’t allowed to be part of the request and you still want to handle that request. You can then delete the keys not being allowed and proceed …

Node.js introduced async/await as a language feature in version 8.0.0. With async/await the development flow changed to use promises instead of callbacks. Since then, the Node.js team added promise-based APIs to Node’s core. I’m continuously updating this overview of promise-based APIs in …

Certbot is part of the Let’s Encrypt family. You’re issuing your Let’s Encrypt SSL certificates through certbot. Certbot is software that you should keep track of during system maintenance. This tutorial shows you how to display the Certbot version number. {{outline}} Show Certbot Version on Ubuntu/Debian …

Sometimes you want to programmatically store files on your local hard drive. You may want to create a nested folder structure on the disk to organize the files. That may require you to create new directories and probably nested directories. This tutorial shows you how to seamlessly create a directory …

GitHub Actions integrate automated workflows into a repository. We’re usually running the test suite of a given repository when pushing commits to a repository on GitHub. This tutorial shows you how to clone other repositories in your GitHub Actions workflows. {{outline}} Use Case: the Supercharge Website The Supercharge website …

UUIDs are typically used as unique identifiers. You can also use them in JavaScript and Node.js. The Node.js team recently added native support to generate a UUID to Node.js’ crypto module. For earlier Node.js versions you may use a community package to generate a UUID. That’ …