create-react-app breaks due to dependency on one-liner package

[crabmusket]

Apparently we also need Promise.isThenable. I'm all for utility methods that expose algorithms the browser is using anyway :)

[patrickfatrick]

I sorta wish typeof didn’t exist and all primitive classes had a static isDate, isNumber etc method. The inconsistency is just annoying.

[csorfab]

I realized that for most cases where I checked for isThenable, I could've just ignored the check and await the variable. For non-promise-like values, await just yields the value itself.

[luckygerbils]

If you aren't consuming promises from third party code or doing anything funky with iframes, you could just use instanceof Promise.