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
# 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
# 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"]