Array#keep_if() : keep_if() is a Array class method which returns the array element that satisfy the given condition.
Syntax: Array.keep_if()
Parameter: Array
Return: the array element that satisfy the given condition.
Example #1 :
# Ruby code for keep_if() method # declaring array a = [ 18 , 22 , 33 , 3 , 5 , 6 ]
# declaring array b = [ 1 , 4 , 1 , 1 , 88 , 9 ]
# declaring array c = [ 18 , 22 , 3 , 3 , 50 , 6 ]
# keep_if puts "keep_if method : #{a.keep_if {|num| num > 10 }}\n\n"
# keep_if puts "keep_if method : #{b.keep_if {|x| x.odd? }}\n\n"
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Output :
keep_if method : [18, 22, 33] keep_if method : [1, 1, 1, 9]
Example #2 :
# Ruby code for keep_if() method # declaring array a = [ 18 , 22 , 33 , 3 , 5 , 6 ]
# declaring array b = [ 1 , 4 , 1 , 1 , 88 , 9 ]
# declaring array c = [ 18 , 22 , 3 , 3 , 53 , 6 ]
# keep_if puts "keep_if method : #{c.keep_if {|num| num > 10 }}\n\n"
# keep_if puts "keep_if method : #{c.keep_if {|num| num.even? }}\n\n"
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Output :
keep_if method : [18, 22, 53] keep_if method : [18, 22]