Linux comes with the which command to locate a given executable. Executables are commands you type into your terminal, like git, node, touch, or vim. Sometimes, you want to find the location of an executable on your filesystem. That’s where the which command comes handy. Read on to find …

Recently, I provisioned a new Elasticsearch cluster. The installation process on Ubuntu used the apt package manager and everything looked good. I started the application as soon as Elasticsearch booted and was ready for connections. The app connected to the database, everything looked good. Yet, the Elastic SDK failed while …

GitHub Actions provider powerful configurations. You can customize the event triggers to run a job to your own needs. We use a handy workflow to publish our packages to the GitHub Package Registry in our repositories. The “publish workflow” only runs when creating a new tag in a repository. {{outline} …

GitHub Actions provide a convenient way to run your application tests. You can also run a test matrix with different dependency versions. For example, a test matrix can consist of three Node.js and two MongoDB versions. The test suite will then run against all combinations of Node.js and …

GitHub Actions have different triggers. You can run an action when pushing code to a repository, or when creating a new tag. When building open source packages, you may receive pull requests from users. Typically, you want to run your test suite against the changed code in the pull request. …

While building the queuing feature in the Supercharge framework, we wanted to enqueue jobs with a delay. You can delay a job by a given number of seconds. Internally, Supercharge stores a notBefore date with the added delay seconds. This tutorial shows you how to add seconds to a date …

Sorting data is a common task in programming. JavaScript provides a .sort(comparator) method on arrays allowing you to sort data with custom comparator. A comparator represents a compare function determining which element comes before the other. When sorting integers, a custom compare function comes handy because you can ensure …

You may want to add different behavior for different input types when working with functions in Node.js and JavaScript. For example, if an input is a promise, you want to resolve it first before moving on with the actual processing. This tutorial shows you how to detect whether a …