> Option, the type safe undefined I mean Scala because I guess it actually has it, but worth pointing out it's like 30 LOC to define one for JS, depending on h

> Option, the type safe undefined I mean Scala because I guess it actually has it, but worth pointing out it's like 30 LOC to define one for JS, depending on how many convenience methods you want. Here's one I wrote: https://github.com/sbernheim4/excoptional https://github.com/sbernheim4/excoptional I fully believe it to be the best Option implementation for JS/TS