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filter 0.0.4

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Enumerable#filter - extended Enumerable#select

Examples

String filter (acts like Enumerable#grep):

[1, 2, 3, 'ab'].filter(/a/)              # => ['ab']
[1, 2, 3, '3'].filter('3')               # => ['3']

You can pass a Proc or Symbol. Methods and blocks are allowed too:

[1, 2, 3].filter(&:even?)                # => [2]
[1, 2, 3].filter(:even?)                 # => [2]
[1, 2, 4].filter { |num| num.even? }     # => [2, 4]

Enumerable#filter can match against enumerable items attributes. Like this:

[1, 2, 3, 4.2].filter :to_i => :even?    # => [2, 4]

If the block is supplied, each matching element is passed to it, and the block’s result is stored in the output array.

[1, 2, 4].filter(&:even?) { |n| n + 1 }  # => [3, 5]

Enumerable#filter also accepts true or false as argument:

[0, false, 2, nil].filter(true)          # => [0, 2]
[0, false, 2, nil].filter(false)         # => [false, nil]

Enumerable#filter also supports OR operator! Just pass many patterns, they will be joined together with OR operator.

[0, 2, 3, 4].filter(:zero?, :odd?)       # => [0, 3]

Gemfile:
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install:
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Versions:

  1. 0.0.6 - December 12, 2011 (8 KB)
  2. 0.0.5 - December 12, 2011 (8 KB)
  3. 0.0.4 - December 12, 2011 (7 KB)
  4. 0.0.3 - December 11, 2011 (6.5 KB)
  5. 0.0.2 - December 11, 2011 (6.5 KB)
Show all versions (6 total)

Development Dependencies (1):

rspec >= 0

Owners:

Authors:

  • Alexey Mikhaylov

SHA 256 checksum:

6f5f2d5a765bb28fe233448091ce5af2aee626692d75159affef75d7569e8608

Total downloads 22,990

For this version 3,441

Licenses:

N/A

Required Ruby Version: None

Links: