You want a solid and convenient experience when working with the file system in Node.js. The file system comes with its own challenges, like space limitations and access restrictions. Typically you also need to ensure a given state. For example, you want to delete all files from a given …

When interacting with dates in JavaScript you sometimes want to provide shortcuts. Like adding a week to a given date. Or moving today’s meeting two weeks into the future (keeping the day and time). That’s what this tutorial is about: adding a single week or multiple weeks to …

When interacting with data you may run into challenges related to code formatting. Your linter may warn about misalignments from returned objects of third-party libraries or data from APIs. You’re not in control of the data format and style. And yet you want to comply with your project’s …

When running a Node.js script you may need to ensure a given Node.js version that runs your script. This happens when you need a given feature that became available in a specific Node.js release. For example, you may require at least Node.js version 14.17.5 …

ECMAScript 2015 introduced the for..of and for..in loops. Both loops allow you to iterate through values in a different way. Please find more details on the differences of both loops in the dedicated tutorial. This tutorial focuses on how to determine whether a given value is actually iterable. …

JavaScript allows you to split strings into an array of string values at individual characters. A hidden functionality is splitting a string into a list of characters. And that’s what this tutorial shows you: how to split a given string value into a list of its individual characters. It …

You may need to read files from a local hard disk in your Node.js project. A typical use case when interacting with files is to read the content as a string. This tutorial shows you how to read a file’s content as a string using Node.js {{outline} …

ESLint comes with support to require or disallow trailing commas. This option is also known as “comma-dangle”. Trailing commas are supported in JavaScript by ECMAScript v5. Here’s a simple example: const futurestudio = { team: ['Marcus', 'Norman', 'Christian'], } The comma after team: ['Marcus', 'Norman', 'Christian'], is a trailing comma. This tutorial …