Data Structures

Adding to a Hash

We can add to a hash two ways: if we created it using literal notation, we can simply add a new key-value pair directly between the curly braces. If we used Hash.new, we can add to the hash using bracket notation:

pets = Hash.new
pets["Stevie"] = "cat"
# Adds the key "Stevie" with the
# value "cat" to the hash
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