Daily Software Tips & Tricks

We've all been there: writing long, defensive chains like 'if (user && user.profile && user.profile.settings)' just to avoid a 'cannot read property of undefined' error. In modern JavaScript and TypeScript, you can replace that entire headache with the optional chaining operator ?.. Just write user?.profile?.settings instead. If any part of the chain is null or undefined, the whole expression safely returns undefined instead of crashing your app. It keeps your code much leaner and far easier to scan at a glance.