In this blog post, we explore how we can style text that we log to the console in Node.js. Some of the examples use a Unix shell but most of the code should also work on Windows.

2ality – JavaScript and more

19.06.2025

How TypeScript solved its global `Iterator` name clash

In ECMAScript 2025, JavaScript gets a class Iterator with iterator helper methods. This class conflicts with TypeScript’s existing types for iterators. In this blog post, we explore why that is and how TypeScript solves that conflict.

2ality – JavaScript and more

22.06.2025

TypeScript: checking Map keys and Array indices

JavaScript has two common patterns: Maps: We check the existence of a key via .has() before retrieving the associated value via .get(). Arrays: We check the length of an Array before performing an indexed access. These patterns don’t work as well in TypeScript. This blog post explains why and presents alternatives.

2ality – JavaScript and more

24.06.2025

Tips for making regular expressions easier to use in JavaScript

In this blog post, we explore ways in which we can make regular expressions easier to use.

home›2ality – JavaScript and more

2ality – JavaScript and more

Software

Styling console text in Node.js

How TypeScript solved its global `Iterator` name clash

TypeScript: checking Map keys and Array indices

Tips for making regular expressions easier to use in JavaScript

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2ality – JavaScript and more