如何在打字稿中按名称检查泛型类型是否具有属性？

Question

I have below code in typescript. In the body of the function, I'd like to check whether each key in the event exists in the type T . How can I do that in typescript ?

export const convert = <T>(event: { [key: string]: any }) => {
   // how can I check whether each key in event exists in type T
}

In this function, I'd like to save the event to Postgresql table so I'd like to filter out fields which don't exist in table columns.

If T is removed after compilation, can I use a class to do that?

Like in below class, it maps to database table columns. Can I filter out the fields in the event based on the fields declared in this class?

class Entity {
   @column()
   id!: string;
   @column
   name? : string;

Answer 1

考虑以下，但event必须输入

export const convert = <T extends Record<string, unknown>>(event: Record<keyof T, unknown>) => {