Daily Software Tips & Tricks

Dealing with deeply nested objects in JavaScript used to mean writing long, ugly chains of checks like if (user && user.profile && user.profile.email). You can ditch that verbosity by using optional chaining (?.). It short-circuits the evaluation if a reference is nullish, returning undefined instead of throwing an error.

Pair this with the nullish coalescing operator (??) to provide a sensible default value. For example, const email = user?.profile?.email ?? 'N/A'; is clean, readable, and keeps your app from crashing when data doesn't look exactly how you expected.