HI, > There are tests for both, and you DON’T get type conversions unless it’s > required. Browsers are smarter than that.
See [1] and follow the path if x in undefined and y is a boolean and true. Compare this with [2] Thanks, Justin 1. https://es5.github.io/#x11.9.3 <https://es5.github.io/#x11.9.3> 2. https://es5.github.io/#x11.9.6 <https://es5.github.io/#x11.9.6>
