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filter 0.0.6

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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:

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Total downloads 23,646

For this version 6,003

Version Released:

Licenses:

N/A

Required Ruby Version: None

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