GUIDES
whereHas() filters parent records by a condition on their related data without ever actually joining tables — a genuinely different mechanism from join(), even though both can produce a similar-looking result.
A factory generates realistic fake data at scale; a seeder decides what to actually create and in what order — the two are complementary tools, not interchangeable alternatives to each other.
Laravel caches five different things separately — config, routes, views, events, and application data — and clearing one doesn't touch the others.
when() keeps a filterable query readable as one fluent chain, avoiding the nested if statements and reassigned query variable that conditional filtering would otherwise require.
Laravel leftJoin preserves unmatched left rows only until a right-table WHERE condition filters them out; put match criteria in ON when the outer join must remain outer.
Angular sanitizes innerHTML bindings automatically by default — bypassing that sanitization with DomSanitizer should only ever be done for content you genuinely trust.
Navigator.pop() can carry a return value back to the screen that pushed it — the mechanism behind refreshing a list after an add/edit screen closes, without a separate state-management solution.
The Crypt facade, AES-256-CBC under the hood, and why encrypted values are not the right tool for anything you need to search or index in the database.
Bottom navigation switches between entirely separate top-level screens; a top TabBar switches between views within one single screen — mixing up which one a given navigation need actually calls for is a common early mistake.
The http package's get() and post() methods, combined with dart:convert's jsonDecode, cover most API calls a typical Flutter app needs to make.
Soft-deleted records vanish from normal queries by default — a specific set of methods (withTrashed, onlyTrashed, restore, forceDelete) is what's needed to actually see and manage them.
View::share() makes a variable available to every view without passing it explicitly from each controller — the right tool for genuinely global data like site settings or unread notification counts.
