Sha256: 9bb3561854b58ee57204a74076de9fe93e187652c4ed1431b688cf1e59f8ecd2
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Size: 1.38 KB
Versions: 19
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Stored size: 1.38 KB
Contents
class Array
# remove arguments or array of
# parameters from the main array
def trim(*args)
args.dup.each do |one_element|
if one_element.class == Array
args.delete_at(args.index(one_element))
args= args+one_element
end
end
delete_array= Array.new
args.each do |one_element|
index= self.index(one_element)
unless index.nil?
delete_array.push index
self.delete_at(index)
end
end
return self
end
# return index of the target element
def index_of(target_element)
array = self
hash = Hash[array.map.with_index.to_a]
return hash[target_element]
end
# remove n. element from the end
# and return a new object
def pinch n=1
return self[0..(self.count-(n+1))]
end
# remove n. element from the end
# and return the original object
def pinch! n=1
n.times do
self.pop
end
return self
end
# return boolean by other array
# all element included or
# not in the target array
def contain?(oth_array)#anothere array
(oth_array & self) == oth_array
end
# do safe transpose
def safe_transpose
result = []
max_size = self.max { |a,b| a.size <=> b.size }.size
max_size.times do |i|
result[i] = Array.new(self.first.size)
self.each_with_index { |r,j| result[i][j] = r[i] }
end
result
end
alias :contains? :contain?
end
Version data entries
19 entries across 19 versions & 1 rubygems