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Can you recommend a post/article explaining some of what makes Ruby's collections especially pleasant? Studying Ruby's stdlib design has been on my 'someday' li
by abecedarius 8y ago
Can you recommend a post/article explaining some of what makes Ruby's collections especially pleasant? Studying Ruby's stdlib design has been on my 'someday' list, but there's so much else there...
- ajmurmann 8y agoIt's mostly how complete the API is and how consistent. For example: * Hash#merge takes a block for conflict resolution. I use this all the time for aggregating counts. * #sample * #unique * Everything has a change in place option by appending "!"
- mmahemoff 8y agoAlso, chaining is extremely concise. e.g. "products.map(&:cost).sort.last"
- klohto 8y agoI couldn't resist... Your example could be improved by using "products.sort_by(&:cost).last" I try to not use map because often there are methods that already implement filtering. Gotta love Ruby readability.
- zem 8y agoone beautiful design decision ruby made really on was that every method would have the option to take a block of code when it was invoked. the code block gets passed to the method as a closure. this makes writing collection apis very pleasant, since so many of them involve passing in a single closure to operate on each element.