dynamic_method_invocation

⚙️ Dynamically Invoke Methods with send

Ruby’s send (or public_send) lets you call a method by name at runtime, enabling flexible and dynamic behavior. This is particularly useful when the exact method to call isn’t known until execution.

method_name = :upcase
text = "hello"
result = text.send(method_name)
puts result  #=> "HELLO"

# public_send respects method visibility (won’t call private methods)
text.public_send(:upcase)

Use public_send for safer reflective calls that respect method visibility constraints.