Write more reliable JavaScript with optional chaining

Let me know if this sounds familiar: you’re deep into debugging or trying to access a deeply nested property in a JavaScript object. Suddenly you see this classic error:

TypeError: Cannot read property ‘x’ of undefined

This is a common pain point, especially when working with API responses, optional fields, or dynamic data structures.Fortunately, JavaScript has a powerful feature to help with this: optional chaining (?.). Optional chaining has saved me from more than a few headaches, and I’m willing to bet it’ll do the same for you.

Source: Write more reliable JavaScript with optional chaining – Matt Smith