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You have a UserService that needs a Database. Your OrderService needs UserService, Database, and a PaymentGateway. Your NotificationService needs EmailClient and UserService.
AdminJuly 31, 20266 min read
Call fib(45) naively and JavaScript will make over a billion recursive calls. Call it twice and you double that. Your CPU fan kicks on, the browser tab freezes, and the function you thought was fast becomes your performance bottleneck.
AdminJuly 31, 20266 min read