block_to_proc_conversion

➰ Converting Blocks with & to Proc

You can convert a block into a Proc object by prefixing a symbol or proc with &. This is handy for passing around reusable logic.

def apply_twice(proc_obj)
  proc_obj.call
  proc_obj.call
end

dbl = Proc.new { puts "Hello twice!" }
apply_twice(&dbl)
# Output:
# Hello twice!
# Hello twice!