Feel the basic type and reference type easily with ruby

Launch Ruby on mac terminal

irb

\ # When the value of the argument of the basic type method does not change

a=1
def method_primitive(a)
   a=2
end
method_primitive a #2
a #1 #Hasn't changed

\ # When the value of the argument of the reference type method changes

temp={}
temp[1]=1
def method_reference(temp)
	temp[1]=2
end
method_reference temp #2
temp[1] #2 #It has changed

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