Alan Agius f97d8a9cbd refactor: EventEmitter to retain behaviour of pre TypeScript 3.9 (#36989)
TypeScript 3.9 introduced a breaking change where extends `any` no longer acts as `any`, instead it acts as `unknown`.

With this change we retain the behavior we had with TS 3.8 which is;

When using the `EventEmitter` as a type you must always provide a  type;
```ts
let emitter: EventEmitter<string>
```

and when initializing the `EventEmitter` class you can either provide a  type or or use the fallback type which is `any`

```ts
const emitter = new EventEmitter(); // EventEmitter<any>
const emitter = new EventEmitte<string>(); // EventEmitter<string>
``

PR Close #36989
2020-05-14 10:50:30 -07:00
2020-01-27 09:31:22 -08:00
2020-01-13 07:21:43 -08:00

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