Safely get values from a Map?

[screendriver]

For Arrays you already have three great functions: head, last and find. But what about Map?

const myMap = new Map<string, string>();
myMap.get('foo'); // string | undefined

The only thing that I found was get but it seems that get() is just working for object literals.

[chriskrycho]

Thanks for opening this! In that case, you could use (and for now I would recommend using) Maybe.of: Maybe.of(Map.get('foo')). There's a tradeoff in the current package design of adding too many helpers of that variety, because of the cost in package size—and in fact medium-term I think we want to pull the array helpers out into a separate package. I should write up what I've been thinking as a little mini-RFC and get feedback.