JavaScript's ??= Operator: Default Values Made Simple

A guide to using ??= in JavaScript to handle null and undefined values elegantly

The nullish coalescing assignment operator ??= is relatively new to JavaScript. It was officially added in ECMAScript 2021 (ES12) as part of the “Logical Assignment Operators” proposal.

Think of ??= as a smart guardian for your variables. It only assigns a new value if the current one is null or undefined