Comments on: Enumerating Ruby’s “Enumerable” Module, Part 2: “collect”, a.k.a. “map” http://www.globalnerdy.com/2008/02/06/enumerating-ruby%e2%80%99s-enumerable-module-part-2-collect-aka-map/ Tech Evangelist Joey deVilla on Shopify, startups, software development, tech news and other nerdy stuff Thu, 09 Feb 2012 21:18:39 +0000 hourly 1 http://wordpress.org/?v=3.3.1 By: David Sifry http://www.globalnerdy.com/2008/02/06/enumerating-ruby%e2%80%99s-enumerable-module-part-2-collect-aka-map/comment-page-1/#comment-10539 David Sifry Wed, 17 Nov 2010 17:22:26 +0000 http://globalnerdy.com/2008/02/06/enumerating-ruby%e2%80%99s-enumerable-module-part-2-collect-aka-map/#comment-10539 Great series! Just a note on a type, probably a carryover from the first post: You have: Special Case: Using collect/map on Empty Arrays and Hashes When applied to an empty array or hash, with or without a block, all? always returns true. I think you mean to say: Special Case: Using collect/map on Empty Arrays and Hashes When applied to an empty array or hash, with or without a block, map always returns an empty array. Great series! Just a note on a type, probably a carryover from the first post:

You have:
Special Case: Using collect/map on Empty Arrays and Hashes
When applied to an empty array or hash, with or without a block, all? always returns true.

I think you mean to say:
Special Case: Using collect/map on Empty Arrays and Hashes
When applied to an empty array or hash, with or without a block, map always returns an empty array.

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