TypeScript Generics with Multiple Type Constraints optimization guide as Expected
I just started working with Hey everyone, I'm running into an issue that's driving me crazy. I've looked through the documentation and I'm still confused about I'm working on a project and hit a roadblock... I'm trying to implement a function that accepts a generic type which should extend multiple interfaces, but I'm running into issues when I attempt to use it. The function is supposed to take an object that must satisfy both `A` and `B` interfaces. Here’s my code: ```typescript interface A { propA: string; } interface B { propB: number; } function combine<T extends A & B>(input: T): void { console.log(input.propA); console.log(input.propB); } const obj = { propA: 'Hello', propB: 123 }; combine(obj); ``` When I run the code, it works perfectly without any errors. However, if I try to pass an object that only implements one of the interfaces, TypeScript does throw an behavior, which is expected. The scenario arises when I try to call the `combine` function with an object like this: ```typescript const partialObj = { propA: 'Hello' }; combine(partialObj); // behavior: Type '{ propA: string; }' is not assignable to type 'A & B'. ``` The behavior message is clear, but it doesn't guide to understand if I can somehow enhance the function to provide more meaningful feedback or to handle such cases gracefully. I’ve read about using union types, but I'm unsure how to apply that in this specific context. What’s the best way to handle function calls where only part of the required structure is available without completely rewriting my initial function? Also, should I consider using type guards or maybe overloads to improve this situation? Any insights would be appreciated! My development environment is Linux. For context: I'm using Typescript on Ubuntu. The project is a desktop app built with Typescript. Is there a better approach? I appreciate any insights!