Sha256: 24938d846aa1c7e20475a231337239d43b618524d85cb336a2efccbb0eefb4a7
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Size: 1.16 KB
Versions: 7
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Stored size: 1.16 KB
Contents
class Array
# Inverse of #delete_if.
#
# [1,2,3].delete_unless{ |x| x < 2 }
# => [1,2]
#
# CREDIT: Daniel Schierbeck
def delete_unless(&block)
delete_if { |element| not block.call(element) }
end
# Delete multiple values from array.
#
# a = [1,2,3,4]
# a.delete_values(1,2) #=> [1,2]
# a #=> [3,4]
#
# CREDIT: Trans
def delete_values(*values)
d = []
values.each{ |v| d << delete(v) }
d
end
# Delete multiple values from array given
# indexes or index range.
#
# a = [1,2,3,4]
# a.delete_values_at(1,2) #=> [2,3]
# a #=> [1,4]
# a = [1,2,3,4]
# a.delete_values_at(0..2) #=> [1,2,3]
# a #=> [4]
#
# NOTE: It would be nice to see #delete_at incorporate this
# funcitonaility.
#
# CREDIT: Trans
def delete_values_at(*selectors)
idx = []
selectors.each{ |i|
case i
when Range
idx.concat( i.to_a )
else
idx << i.to_i
end
}
idx.uniq!
dvals = values_at(*idx)
idx = (0...size).to_a - idx
self.replace( values_at(*idx) )
return dvals
end
end
Version data entries
7 entries across 7 versions & 2 rubygems