Module: Enumerable

Defined in:
lib/homeschool.rb

Instance Method Summary collapse

Instance Method Details

#average(&block) ⇒ Object 



107
108
109
 
# File 'lib/homeschool.rb', line 107

def average(&block)
  sum(&block)/length
end

#intersect(other) ⇒ Object 



98
99
100
 
# File 'lib/homeschool.rb', line 98

def intersect(other)
  select &other.method(:include?)
end

#max_by(&block) ⇒ Object 



104
105
106
 
# File 'lib/homeschool.rb', line 104

def max_by(&block)
  max {|a,b| block.call(a) <=> block.call(b)}
end

#min_by(&block) ⇒ Object 



101
102
103
 
# File 'lib/homeschool.rb', line 101

def min_by(&block)
  min {|a,b| block.call(a) <=> block.call(b)}
end

#without(*args) ⇒ Object 



95
96
97
 
# File 'lib/homeschool.rb', line 95

def without(*args)
  reject &args.method(:include?)
end