I can define as below

new Promise((resolve) => {
      setTimeout(() => {
        console.log('Promise Done');
      }, 2000);
    });

But according to the below promise.d.ts file, both resolve and reject are needed, right?

interface PromiseConstructor

new <T>(executor: (resolve: (value: T | PromiseLike<T>) => void, reject: (reason?: any) => void) => void): Promise<T>;