Node.js comes with the crypto module that provides a lot of useful methods for data encryption and hashing. There’s a built-in function to calculate an MD5 hash for a given value. This tutorial shows you how to hash a given string using the MD5 algorithm. {{outline}} Calculate an …

JavaScript programs started small by being used here and there. Over time, the usage of JavaScript increased and we’re writing full applications that run in the browser. These large applications can be hard to maintain. It makes sense to think about ways of splitting them up into modules. Modern …

Sorting data is an essential task in applications. For example, a list of data in the frontend contains ways to sort the data based on a given column. Also, you might want to sort the data in ascending or descending order. This tutorial shows you how to sort a JavaScript …

Sorting arrays of data is an everyday use case in applications. For example, you want to display a list of names in alphabetical order and allow the user to toggle the sorting from ascending to descending and vice-versa. This tutorial shows you how to sort an array of strings in …

Modern JavaScript ships with the dedicated URLSearchParams class to interact with URL query parameters. This class parses query parameters from a given string and provides methods to interact with the parameters. For example, you may append, delete, get, sort, or iterate through all items using the forEach, keys, or values …

Vite is a modern tool to bundle your frontend assets. You’re mainly using ES Modules when working with Vite. And Vite extends the global import.meta object with handy utilities. For example, it adds an import.meta.glob function allowing you to resolve files from a path. In combination …

We started using Vite to bundle our frontend JavaScript. Vite is a modern, fast tool to build and serve frontend assets. It’s a solid choice when working with a framework like Vue.js or React. Yet, we fought the „Unexpected token export” error. It told us that the export …

JavaScript uses two representations of „empty“ values. When „empty“ we mean that they don’t have an exact value assigned. These two values are null and undefined. Both values, null and undefined, are valuable in JavaScript. Except when you are not checking for them. In such cases, you’re running …