delete_if passes all pairs into the block, so you can delete based on a key or a value. : delete_if « Hash « Ruby

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Ruby » Hash » delete_if 
delete_if passes all pairs into the block, so you can delete based on a key or a value.


# Here is an example of a deletion based on value:

myHash = => "One"=> "Two"=> "Three"=> "Four"=> "Five" }

myHash.delete_if |key, value| value == "Two" # => {5=>"Five"1=>"One"3=>"Three"4=>"Four"}

 
Related examples in the same category
1.Deleting Hash Elements Conditionally
2.Delete if with block logics
3.Delete if for a certain value
4.delete_if uses a block
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