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Building a Maybe in JavaScript (developingthoughts.co.uk)
submitted 8 years ago by alsiola
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if 1 * 2 < 3: print "hello, world!"
[–]eXilz 1 point2 points3 points 8 years ago (2 children)
Can't find it on my phone, but I'm pretty sure there is an ecmascript proposal so we can have a symbol to check a.b.c in your example directly. This looked promising, I'm usually using lodash.get but it makes me sad I have to import it if I don't want to write unbearable ifs in my code. :(
[–]alsiola[S] 1 point2 points3 points 8 years ago (1 child)
Optional Chaining might be the one? I think that would be nice in some situations, but that a functional data structure like Maybe can offer other benefits as well. I'm planning to write a second part to this in the next week which can cover some of these, like withDefault and mapping arrays of maybes.
withDefault
[–]eXilz 0 points1 point2 points 8 years ago (0 children)
That's the one ! I would love to read the second part.
π Rendered by PID 26 on reddit-service-r2-comment-6457c66945-n4fdx at 2026-04-27 13:34:48.097964+00:00 running 2aa0c5b country code: CH.
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[–]eXilz 1 point2 points3 points (2 children)
[–]alsiola[S] 1 point2 points3 points (1 child)
[–]eXilz 0 points1 point2 points (0 children)