module Enumerable

Copyright © 2006-2024 Hal Brodigan (postmodern.mod3 at gmail.com)

ronin-support is free software: you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

ronin-support is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public License along with ronin-support. If not, see <www.gnu.org/licenses/>.

Public Instance Methods

map_hash() { |key| ... } click to toggle source

Maps the elements to a Hash.

@yield [element]

The given block will be passed each element.
The return value from the block will be stored in the hash.

@yieldparam [Object] element

An element.

@return [Hash{Object => Object}]

The hash of elements and their mappings.

@example

host_names = %w[www.wired.com www.google.com]
host_names.map_hash { |name| Resolv.getaddresses(name) }
# {"www.wired.com"=>["184.84.183.17", "184.84.183.91"],
#  "www.google.com"=>["173.194.33.18", "173.194.33.17", "173.194.33.19", "173.194.33.20", "173.194.33.16"]}

@since 0.3.0

@api public

# File lib/ronin/support/core_ext/enumerable.rb, line 43
def map_hash
  new_hash = Hash.new do |hash,key|
    hash[key] = yield(key)
  end

  each { |element| new_hash[element] }
  return new_hash
end