Most cited

Posts that commenters keep linking to, ranked by how many different people have cited them in Hacker News comments. 716 posts.

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2018
698

Sum Types Are Coming (2015)

Just as all mainstream languages now have lambda functions, I predict sum types are the next construct to spread outward from the typed functional programming community to the mainstream. Sum types are very useful, and after living with them in Haskell for a while, I miss them deeply when using languages without them…

699

JEP 325: Switch Expressions

Extend the switch statement so that it can be used as either a statement or an expression, and that both forms can use either a "traditional" or "simplified" scoping and control flow behavior. These changes will simplify everyday coding, and also prepare the way for the use of pattern matching (JEP 305) in switch …

705

Amazon DynamoDB On Demand

January 31, 2025: Post updated to clarify the reduced on-demand pricing and workloads recommendations. Just a few years ago, creating a database that could support your business at any scale while providing consistent low latency was a daunting task. That changed for me in 2012 while reading Werner Vogels’ blog post…

714

A Year Away from Mac OS

This is the fifth post in my series on finding an alternative to Mac OS X. A bit over a year ago I wrote about my search for an alternative to Mac OS and switch to Linux. In this post I reflect on how that year went and detail some further adventures into Mac OS alternatives.