Ruby | Array keep_if() function
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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filter_none
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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filter_none
Output :
keep_if method : [18, 22, 53] keep_if method : [18, 22]
