TypeScript - implementing Type Inference When Using Intersection Types in React Props
I'm a bit lost with I'm building a feature where I've been struggling with this for a few days now and could really use some help... I'm working with a frustrating scenario with TypeScript when trying to define props for a React component using intersection types. I want my component to accept props from multiple interfaces, but TypeScript doesn’t seem to infer the types correctly, which leads to some confusing errors. Here’s what my code looks like: ```typescript interface UserProps { name: string; age: number; } interface AdminProps { adminLevel: number; } type CombinedProps = UserProps & AdminProps; const UserProfile: React.FC<CombinedProps> = (props) => { return ( <div> <h1>{props.name}</h1> <p>Age: {props.age}</p> <p>Admin Level: {props.adminLevel}</p> </div> ); }; ``` When I try to use the `UserProfile` component like this: ```typescript <UserProfile name="John Doe" age={30} /> ``` I get the following behavior: ``` TS2345: Argument of type '{ name: string; age: number; }' is not assignable to parameter of type 'CombinedProps'. Property 'adminLevel' is missing in type '{ name: string; age: number; }' but required in type 'CombinedProps'. ``` I expected TypeScript to infer that `adminLevel` should be optional in this case, since I want to allow for a user profile to be created without the admin properties. I’ve tried making `adminLevel` optional in the `AdminProps` interface by changing it to `adminLevel?: number;`, but the behavior continues. Here’s how I updated the interface: ```typescript interface AdminProps { adminLevel?: number; } ``` However, I still get the same behavior message when I try to render the component without providing an `adminLevel`. Is there something I’m missing about how intersection types work in TypeScript? Any guidance on how to properly handle this scenario would be greatly appreciated. Any help would be greatly appreciated! I've been using Typescript for about a year now. Any suggestions would be helpful. I'm coming from a different tech stack and learning Typescript. Any help would be greatly appreciated!