JavaScript introduced the for…of loops with ECMAScript 2015. The for loop provides a convenient way of iterating over a collection of items. A downside of a for…of loop: by default, it doesn’t give you the item’s index. Yet, you can conveniently work around this shortcoming and …

When interacting with the local hard disk, you may need to check whether an existing path is a file or a directory. Node.js comes with the fs core module providing dozens of useful low-level methods to interact with the hard disk. This tutorial shows you how to compose an …

You may want to determine whether a given path is a directory when working with the file system in Node.js. Node.js comes with the fs core module allowing you to interact with the local hard disk. This tutorial shows you how to combine existing fs methods to determine …

Sometimes you need to break out of a loop in JavaScript. For example, you may want to stop iterating through an array of items as soon as you find a specific element. TL;DR: use break to exit a loop in JavaScript. This tutorial shows you how to terminate the …

Sometimes you want to ensure a given value is actually a string. For example, you may want to confirm a name property to be a string value. This tutorial shows you how to detect whether a given value is a string in JavaScript. {{outline}} Determine If a Given Value Is …

When working with text in JavaScript, you may need to limit the number of characters of a string value. For example, the tutorial overview here on Future Studio displays an excerpt of 300 characters providing a short introduction. This tutorial shows you how to limit a string in JavaScript to …

GitHub Actions are a seamless way to integrate automated tasks into your repository. Sometimes it’s helpful to leave a comment in the action’s YAML file. Yes! Workflow files in GitHub Actions support comments! This tutorial shows you how to add comments to GitHub Actions workflow files. {{outline}} Add …

Node.js ships with a file system module allowing you to interact with files on the local hard disk. The file system module fs provides two methods allowing you to rename files: Fs#rename and Fs#renameSync. This tutorial shows you how to rename a file synchronously and asynchronously using …