- You can set generic in function by doing
Function <T> trigger(event: Event<T>){ return event.target; } and here type of Event is type Event<T> = { target: T } - Normally when we call this function we will invoke the function and provide the type it expects instead of T as it doesn’t have a default type which we can do by
<T extends {}> or <T = {}> or both. - Instead of passing it while invoking, we can call the function like this
trigger({ target: ‘blank’ }) and TypeScript will evaluate the value passed to target as it was expected to be T type. So, now TypeScript will go through all T and change it with string data type or anything you provide.
