What does map(&:name) mean in Ruby?

map(&:name) is Ruby’s symbol-to-proc shorthand. It’s equivalent to writing:

map { |element| element.name }

Here’s how it works:

• :name is a symbol referencing the name method.
• &:name calls to_proc on the symbol, creating a proc that invokes the name method on each element in the array.
• map applies this proc to each element and returns a new array with the results of calling name on each element.

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