enumerator

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How to implement an enumerator in Ruby?

For example: a = [1,2,3,4,5] a.delete_if { |x| x > 3 } is equivalent to: a = [1,2,3,4,5] a.delete_if.each.each.each.each { |x| x > 3 }[详细]

2023-04-11 18:32 分类：问答
Comparison of enumerator vs. iteratee package

Currently, there two popular choices which implement the iteratee pa开发者_运维技巧ttern: The enumerator package and[详细]

2023-04-11 08:54 分类：问答
How to create custom iterator for Range

I\'d like to create a subclass of Range in order to specify a step size other than 1 so I can do things like:[详细]

2023-04-08 04:27 分类：问答
Ruby: Manipulate Iterators?

I\'m having teething problems with Ruby, with regards to creating single-direction, lazily-evaluated, potentially-infinite iterators. Basically, I\'m trying to use Ruby like I\'d use Haskell lists and[详细]

2023-03-26 19:01 分类：问答
Type signature in a where clause

I\'ve written a function similar to Data.Enumerator.List.map that makes an Iteratee compatible with an Enumerator that feeds a different Stream type.[详细]

2023-03-25 11:23 分类：问答
C# - How to create updatable enumerator?

I\'m a bit new to C# (coming from PHP) and I was a bit shocked that, by looping through a list I can\'t pass a reference to that varialbe, i.e. the following code is not valid:[详细]

2023-03-24 04:27 分类：问答
SSIS How to retrieve a file name when using a Foreach ADO Enumerator

Here is my problem. I have a first SQL task that return filepath into a Full result set (ie: \\server\\myfolder)[详细]

2023-03-14 20:50 分类：问答
C# Trying to make my own List with a static index counter

I want to make my own List which has the ability to work in foreach loop. As well as have other important commands a List has like IndexOf (which is the only thing I don\'t like about List, since it\'[详细]

2023-03-14 07:14 分类：问答
Find is returning Enumerator, not object

I\'m working on a Rails 3 app, and I\'ve got a line in one of my controllers that looks as follows: @features = Feature.find(:all, :conditions => [\'featured_at < ?\', Time.current], :order =&g[详细]

2023-03-13 17:52 分类：问答
C#: Access a reverse enumerator for a linkedlist

I\'ve created a \"reverse itearator\" for a LinkedList, now I would like to use it with an extension method:[详细]

2023-03-01 02:05 分类：问答