Ideone.com

fork download

copy

foo = [[nil]*5]*5
foo[0][0] = 'bar'
p foo

Success #stdin #stdout 0s 4760KB

stdin

copy

Standard input is empty

stdout

copy

[["bar", nil, nil, nil, nil], ["bar", nil, nil, nil, nil], ["bar", nil, nil, nil, nil], ["bar", nil, nil, nil, nil], ["bar", nil, nil, nil, nil]]

https://ideone.com/IpWbZ

language:

Ruby (ruby 2.5.5)

created:

visibility:

public

Share or Embed source code

The brand new service which powers Ideone!

Widget for compiling and running the source code in a web browser!