Blocks, Procs and Lambdas

Examples

def block_message_printer
    message = "Welcome to Block Message Printer"
    if block_given?
        yield
    end
    puts "But in this function/method message is :: #{message}"
end

message = gets
block_message_printer { puts "This message remembers message :: #{message}" }

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def proc_message_printer(my_proc)
    message = "Welcome to Proc Message Printer"
    my_proc.call
    puts "But in this function/method message is :: #{message}"
end


my_proc = proc { puts "This message remembers message :: #{message}" }
proc_message_printer(my_proc)

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def lambda_message_printer(my_lambda)
    message = "Welcome to Lambda Message Printer"
    my_lambda.call
    puts "But in this function/method message is :: #{message}"
end

my_lambda = -> { puts "This message remembers message :: #{message}" }
lambda_message_printer(my_lambda)

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