Adding an element to a copy of an array

Ruby
1

Hi,

array = [“one”, “two”, “three”]
array_copy = array
array_copy << “four”
p array
p array_copy

#=>
[“one”, “two”, “three”, “four”]
[“one”, “two”, “three”, “four”]

How can I add an element to “array_copy” and leave “array” unaltered?

Cheers.

2

Answered my own question.
Array.dup ist the way to go.

3

array = [“one”, “two”, “three”]
array_copy = array.clone
array_copy << “four”
p array
p array_copy

output:
[“one”, “two”, “three”]
[“one”, “two”, “three”, “four”]