Comments on: Scala Collections for the Easily Bored Part 3: All at Once http://www.codecommit.com/blog/scala/scala-collections-for-the-easily-bored-part-3 (permanently in beta) Sun, 29 Aug 2010 20:01:44 -0700 http://wordpress.org/?v=2.9.2 hourly 1 By: Daniel Spiewak http://www.codecommit.com/blog/scala/scala-collections-for-the-easily-bored-part-3/comment-page-1#comment-4111 Daniel Spiewak Thu, 09 Oct 2008 01:04:44 +0000 http://www.codecommit.com/blog/scala/scala-collections-for-the-easily-bored-part-3#comment-4111 Done...and thanks! Done…and thanks!

]]> By: Kevin Albrecht http://www.codecommit.com/blog/scala/scala-collections-for-the-easily-bored-part-3/comment-page-1#comment-4110 Kevin Albrecht Wed, 08 Oct 2008 22:57:25 +0000 http://www.codecommit.com/blog/scala/scala-collections-for-the-easily-bored-part-3#comment-4110 Daniel, you should make a link on part 2 of this series to part 3. Good series, btw. Daniel, you should make a link on part 2 of this series to part 3. Good series, btw.

]]> By: Daniel Spiewak http://www.codecommit.com/blog/scala/scala-collections-for-the-easily-bored-part-3/comment-page-1#comment-3902 Daniel Spiewak Tue, 05 Aug 2008 02:14:29 +0000 http://www.codecommit.com/blog/scala/scala-collections-for-the-easily-bored-part-3#comment-3902 @Kristian Quite so. Thanks for catching! @Kristian

Quite so. Thanks for catching!

]]> By: Kristian Domagala http://www.codecommit.com/blog/scala/scala-collections-for-the-easily-bored-part-3/comment-page-1#comment-3901 Kristian Domagala Tue, 05 Aug 2008 00:43:10 +0000 http://www.codecommit.com/blog/scala/scala-collections-for-the-easily-bored-part-3#comment-3901 Just a slight correction to the last example, it should probably be: elem == Some(3) // true Just a slight correction to the last example, it should probably be:

elem == Some(3) // true

]]> By: Tyler Weir http://www.codecommit.com/blog/scala/scala-collections-for-the-easily-bored-part-3/comment-page-1#comment-3898 Tyler Weir Mon, 04 Aug 2008 16:36:16 +0000 http://www.codecommit.com/blog/scala/scala-collections-for-the-easily-bored-part-3#comment-3898 Hi Daniel, I just wanted to thank you for taking the time to produce these posts. I find them really helpful. Hi Daniel, I just wanted to thank you for taking the time to produce these posts. I find them really helpful.

]]> By: jherber http://www.codecommit.com/blog/scala/scala-collections-for-the-easily-bored-part-3/comment-page-1#comment-3897 jherber Mon, 04 Aug 2008 15:05:41 +0000 http://www.codecommit.com/blog/scala/scala-collections-for-the-easily-bored-part-3#comment-3897 here are a few syntactic permutations that also work in your last example, showing how flexible scala's syntax is: "val elem = nums.find((n) => (3 to 5).contains(n))" alternative function literals: val elem = nums.find( (n) => (3.to(5)).contains(n)) // explicit method "to" val elem = nums.find( n => (3 to 5).contains(n)) // remove extra parens on param "n" val elem = nums.find( n => 3 to 5 contains(n) ) // remove extra parens on method val elem = nums.find( n => 3 to 5 contains n ) // remove extra parens on "contains" func val elem = nums.find( 3 to 5 contains _ ) // syntax for place holder value val elem = nums.find( 3 to 5 contains ) // syntax for implied place holder value val elem = nums.find { 3 to 5 contains } // parens and curly braces "somewhat" interchangeable here are a few syntactic permutations that also work in your last example, showing how flexible scala’s syntax is:

“val elem = nums.find((n) => (3 to 5).contains(n))”

alternative function literals:
val elem = nums.find( (n) => (3.to(5)).contains(n)) // explicit method “to”
val elem = nums.find( n => (3 to 5).contains(n)) // remove extra parens on param “n”
val elem = nums.find( n => 3 to 5 contains(n) ) // remove extra parens on method
val elem = nums.find( n => 3 to 5 contains n ) // remove extra parens on “contains” func
val elem = nums.find( 3 to 5 contains _ ) // syntax for place holder value
val elem = nums.find( 3 to 5 contains ) // syntax for implied place holder value
val elem = nums.find { 3 to 5 contains } // parens and curly braces “somewhat” interchangeable

]]> By: German B. http://www.codecommit.com/blog/scala/scala-collections-for-the-easily-bored-part-3/comment-page-1#comment-3896 German B. Mon, 04 Aug 2008 15:04:26 +0000 http://www.codecommit.com/blog/scala/scala-collections-for-the-easily-bored-part-3#comment-3896 It might be worth mentioning the strict / lazy distinction in collections to newbies... I have once been puzzled by a difference in behaviour between a Range (lazy) and a List (strict). It might be worth mentioning the strict / lazy distinction in collections to newbies… I have once been puzzled by a difference in behaviour between a Range (lazy) and a List (strict).

]]> By: Daniel Spiewak http://www.codecommit.com/blog/scala/scala-collections-for-the-easily-bored-part-3/comment-page-1#comment-3894 Daniel Spiewak Mon, 04 Aug 2008 09:32:47 +0000 http://www.codecommit.com/blog/scala/scala-collections-for-the-easily-bored-part-3#comment-3894 Nice catch on the caching bit. I've updated the article with the correction. Nice catch on the caching bit. I’ve updated the article with the correction.

]]> By: Ole Hougaard http://www.codecommit.com/blog/scala/scala-collections-for-the-easily-bored-part-3/comment-page-1#comment-3892 Ole Hougaard Mon, 04 Aug 2008 08:10:40 +0000 http://www.codecommit.com/blog/scala/scala-collections-for-the-easily-bored-part-3#comment-3892 Nice installment. One of the cool things with Scala's way of returning multiple variables is that you can write things like val (even, odd) = separateEven(numbers) I noticed you didn't update the cache in the readData example. I suppose that was an oversight. Nice installment.

One of the cool things with Scala’s way of returning multiple variables is that you can write things like
val (even, odd) = separateEven(numbers)

I noticed you didn’t update the cache in the readData example. I suppose that was an oversight.

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