The JavaScript engine comes with a global Date class. Interacting with dates is an essential part of programming. JavaScript’s Date comes with two methods to retrieve the current year: Date#getYear and Date#getFullYear. This tutorial shows you what to look out for when using one or another and …

Node.js provides a global JSON object providing methods to parse a JSON string to JavaScript or stringify JavaScript values to a JSON string. The problem is that JavaScript’s global JSON object comes with a flaw allowing prototype pollution attacks. This tutorials shows you how to securely parse JSON …

Node.js runs on different architectures. You can use it on all common operating systems, like Windows, Linux, and macOS. You can also use it on 32-bit and 64-bit machines. This tutorial shows you how to detect whether you’re running in a 32 or 64-bit system. {{outline}} Detect If …

When working with arrays in JavaScript you may need to reverse it. Reversing the array will make the last item the first one, the second to last item the second one, and so on. This tutorial shows how to reverse an array in JavaScript and what side effects to keep …

JSON (JavaScript Object Notation) is a data format used across applications to share data. The applications can use different languages and they are able to share information using the JSON format. Node.js and NPM use a JSON file storing configuration details: the package.json file. Besides the package.json …

Node.js can extract a file name from a given path. The path can be an absolute or relative path. You can then let Node.js do the parsing and return the file path. {{outline}} Get the File Name With Extension You can retrieve the file name from a given …

Sometimes it’s necessary to detect the operating system running the Node.js process. Node.js comes with the built-in os module providing methods to detect the current platform. Use the methods to create a utility function detecting whether you’re currently running Node.js on Windows. {{outline}} Check if …

Sometimes you need to detect the platform that runs your Node.js process. You can do that by using Node.js’ built-in os module. It provides a method returning the operating system and you can then compare the platform against macOS. {{outline}} Check if the Operating System is macOS The …