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→{{header|Sidef}}: updated code
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=={{header|Sidef}}==
<syntaxhighlight lang="ruby">var arr = [1,2,3,4,5]
# Creates a new array
var new = arr.grep {|i| i.is_even
say new
# Destructive (at variable level)
arr.grep! {|i| i.is_even
say arr
=={{header|Slate}}==
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