Argument of type '(e: CustomEvent) => void' is not assignable to parameter of type 'EventListenerOrEventListenerObject'

Question

I have this custom event setup, and it works with TypeScript 2.5.3, but when I updated to 2.6.1 I get an error

window.addEventListener(         


        

Answer 1

Building off of jcalz's excellent answer, you can also use a type assertion to be a little cleaner:

window.addEventListener('OnRewards', (e: Event) => {
    const detail = (e).detail;
    ...
});