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Update hash.rb #217

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21 changes: 20 additions & 1 deletion Ruby/Hashes/hash.rb
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Original file line number Diff line number Diff line change
Expand Up @@ -18,6 +18,25 @@

days["1"] or days["2"]

# To check if a key is present, use

days.key?("1") # true
days.key?("3") # false

# To list out all the keys, use

days.keys
days.keys

# To list out all the values, use

days.values

days = {"1" => "Sunday", "2" => "Monday", "3" => nil}

# To remove nil values/keys, use

days.compact

# To remove all values/keys, use

days.clear