Array#none?() : none?() is a Array class method which checks whether the array is empty or not.
Syntax: Array.none?()
Parameter: Array
Return: true – if array has no elements otherwise return false
Example #1 :
# Ruby code for none?() method # declaring array a = [ 18 , 22 , 33 , nil , 5 , 6 ]
# declaring array b = [ 1 , 4 , 1 , 1 , 88 , 9 ]
# declaring array c = [] # none? method example puts "none?() method form : #{a.none?()}\n\n"
puts "none?() method form : #{b.none?()}\n\n"
puts "none?() method form : #{c.none?()}\n\n"
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Output :
none?() method form : false none?() method form : false none?() method form : true
Example #2 :
# Ruby code for none?() method # declaring array a = [ "abc" , "nil" , "dog" ]
# declaring array c = [ nil ]
# declaring array b = [ "cow" , nil , "dog" ]
# none? method example puts "none?() method form : #{a.none?()}\n\n"
puts "none?() method form : #{b.none?()}\n\n"
puts "none?() method form : #{c.none?()}\n\n"
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Output :
none?() method form : false none?() method form : false none?() method form : true