TS async data creation helper function

I have created a neat little helper function to create asynchronous data of synchronous data. I usually use it for mock data.

async function promiseOf<T>(data: T): Promise<T> {
  return new Promise(resolve => resolve(data));
}

This simulates data being fetched. Because it uses generics, the data passed in will be available in Intellisense.

It can also easily be extended to include a mocked "latency"

async function promiseOf<T>(data: T, latency = 0): Promise<T> {
  return new Promise(resolve => setTimeout(resolve(data), latency));
}

Let me know if you find this helpful.