typescript types

types.ts

interface Person<Type> {
  id: Type extends "A" ? number : string;
  name?: string;
}

/**
 * a
 */
type Category = "A" | "B" 

/**
 * a
 */
class Component {

  constructor() {
    this.send("B", {
      id: '1'
    })
  }
  /**
   * a
   * @param abc a
   * @param age 
   */
  public send<Type extends Category>(category: Type, person: Person<Type>): void {
    console.log(category);
    console.log(person.id);
  }
}

new Component();