TypeScript Error: Type 'string' is not assignable to type — how to fix?

Hello everyone! I just started learning TypeScript and encountered an unclear error. I have an interface for a user: ```typescript interface User { name: string; age: number; role: 'admin' | 'user'; } ``` I'm trying to create a user object from data obtained from a form. The data comes as strings (even age is a string from an input). I wrote this code: ```typescript const formData = { name: 'Ivan', age: '25', // string, but should be number role: 'admin' }; const user: User = { name: formData.name, age: formData.age, // error: Type 'string' is not assignable to type 'number' role: formData.role // error: Type 'string' is not assignable to type '"admin" | "user"' }; ``` TypeScript complains about age and role. I understand that age should be a number and role should be strictly 'admin' or 'user', but how to correctly convert the types? I tried using `as` — it works, but I heard it's bad practice. Tell me how to properly solve this p