Module: Hammock::ArrayPatches::InstanceMethods

Defined in:
lib/hammock/monkey_patches/array.rb

Instance Method Summary collapse

Instance Method Details

#as_index_for(&value_function) ⇒ Object 



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# File 'lib/hammock/monkey_patches/array.rb', line 51

def as_index_for &value_function
  inject({}) do |accum, elem|
    accum[elem] = value_function.call(elem)
    accum
  end
end

#discard(*args, &block) ⇒ Object 



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# File 'lib/hammock/monkey_patches/array.rb', line 42

def discard *args, &block
  dup.discard! *args, &block
end

#discard!(*args, &block) ⇒ Object 



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# File 'lib/hammock/monkey_patches/array.rb', line 45

def discard! *args, &block
  args.each {|arg| delete arg }
  each {|i| delete(i) if yield(i) } if block_given?
  self
end

#ends_with?(*other) ⇒ Boolean

Returns true iff other appears exactly at the end of self.

Returns:

  • (Boolean) 


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# File 'lib/hammock/monkey_patches/array.rb', line 21

def ends_with? *other
  self[-other.length, other.length] == other
end

#hash_by(*methods, &block) ⇒ Object 



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# File 'lib/hammock/monkey_patches/array.rb', line 64

def hash_by *methods, &block
  hsh = Hash.new {|h,k| h[k] = [] }
  this_method = methods.shift

  # First, hash this array into +hsh+.
  each {|i| hsh[this_method == :self ? i : i.send(this_method)] << i }

  if methods.empty?
    # If there are no methods remaining, yield this group to the block if required.
    hsh.each_pair {|k,v| hsh[k] = yield(hsh[k]) } if block_given?
  else
    # Recursively hash remaining methods.
    hsh.each_pair {|k,v| hsh[k] = v.hash_by(*methods, &block) }
  end

  hsh
end

#pick(&block) ⇒ Object 



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# File 'lib/hammock/monkey_patches/array.rb', line 25

def pick &block
  value = nil
  detect {|i| value = yield(i) }
  value
end

#rand ⇒ Object 



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# File 'lib/hammock/monkey_patches/array.rb', line 31

def rand
  self[Kernel.rand(length)]
end

#remove_framework_backtrace ⇒ Object 



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# File 'lib/hammock/monkey_patches/array.rb', line 58

def remove_framework_backtrace
  reverse.drop_while {|step|
    !step.starts_with?(RAILS_ROOT)
  }.reverse
end

#squash ⇒ Object 



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# File 'lib/hammock/monkey_patches/array.rb', line 35

def squash
  dup.squash!
end

#squash! ⇒ Object 



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# File 'lib/hammock/monkey_patches/array.rb', line 38

def squash!
  delete_if &:blank?
end

#starts_with?(*other) ⇒ Boolean

Returns true iff other appears exactly at the start of self.

Returns:

  • (Boolean) 


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# File 'lib/hammock/monkey_patches/array.rb', line 16

def starts_with? *other
  self[0, other.length] == other
end