excaliburjs / Excalibur / 3054 / 1

84%

main: 89%

push

travis-ci

[#1147] Make event handlers strict null/function check compatible (#1148)

Closes #1147 

## Changes:

- The handler signature implies the event object may be null, this is untrue and a source of bugs and unessary checks

![image](https://user-images.githubusercontent.com/612071/57203750-4a9be480-6f78-11e9-9ab1-7830d18a1d8f.png)

1980 of 3148 branches covered (62.9%)

7695 of 9242 relevant lines covered (83.26%)

12232.61 hits per line