Ruby 2.6 - Hackdot

Re:Ruby 2.6 by ajmurmann on Monday December 24, 2018 @03:44PM (#18754176)

It'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 "!"

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Re:Ruby 2.6 by mmahemoff on Monday December 24, 2018 @04:01PM (#18754250)

Also, chaining is extremely concise. e.g. "products.map(&:cost).sort.last"

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Re:Ruby 2.6 by klohto on Tuesday December 25, 2018 @06:12AM (#18756982)

I 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.

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Re:Ruby 2.6 by viraptor on Tuesday December 25, 2018 @08:05AM (#18757251)

I think you need `products.sort_by(&:cost).last.cost` for the same result.

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Re:Ruby 2.6 by klohto on Tuesday December 25, 2018 @10:20AM (#18757700)

You’re correct!

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