Ruby | Array compact() operation

Array#compact () : compact () is a Array class method which returns the array after removing all the ‘nil’ value elements (if any) from the array. 

Syntax:  Array.compact()

Parameter:  Array to remove the 'nil' value from. 

Return:  removes all the nil values from the array.

Code #1 : Example for compact() method

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# Ruby code for compact() method
# showing how to remove nil values
  
# declaring array
a = [18, 22, 33, nil, 5, 6]
  
# declaring array
b = [5, 4, nil, 1, 88, 9]
  
# declaring array
c = [18, 22, nil, 40, 50, 6]
  
# removing nil value from array
puts "removing nil value : #{a.compact}\n\n"
  
# removing nil value from array
puts "removing nil value : #{b.compact}\n\n"
  
# removing nil value from array
puts "removing nil value : #{c.compact}\n\n"

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Output :


removing nil value : [18, 22, 33, 5, 6]

removing nil value : [5, 4, 1, 88, 9]

removing nil value : [18, 22, 40, 50, 6]



Code #2 : Example for compact() method













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# Ruby code for compact() method 


# showing how to remove nil values 


  


# declaring array 


a = ["abc", "nil", "dog"] 


  


# declaring array 


b = ["cow", nil, "dog"] 


  


# declaring array 


c = ["cat", nil, nil] 


  


# removing nil value from array 


puts "removing nil value : #{a.compact}\n\n"


  


# removing nil value from array 


puts "removing nil value : #{b.compact}\n\n"


  


# removing nil value from array 


puts "removing nil value : #{c.compact}\n\n"



















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Output : 


removing nil value : ["abc", "nil", "dog"]

removing nil value : ["cow", "dog"]

removing nil value : ["cat"]






    

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