Declare and initialize a Dictionary in Typescript

Question

Given the following code

interface IPerson {
   firstName: string;
   lastName: string;
}

var persons: { [id: string]: IPerson; } = {
   \"p1\": { firstName         


        

Answer 1

If you want to ignore a property, mark it as optional by adding a question mark:

interface IPerson {
    firstName: string;
    lastName?: string;
}