Ruby Learning Summary 03

1. Invocation of the method

Object. Method name (parameter 1, parameter 2, ...). ) can omit the parameter list ()

Object. Method name (parameter 1, ...).            ) do | Variable 1, variable 2,...| You can omit the parameter ()

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End

Object. Method name (parameter 1, ...).             ) {| Variable 1, variable 2...| You can omit () as long as there are no parameters.

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}

You can use "* array" as an argument to assign the elements in the array to the parameters in the method sequentially

You can omit {} When hashing as a parameter

Ruby Learning Summary 03