concatenate is with the << method : Array Addition « Array « Ruby

1. Ruby
2. Array
3. Array Addition

concatenate is with the << method

yrs = [1999]
yrs << 2000 # => [1999, 2000]

# You can chain these, too:

yrs << 2001 << 2002 << 2003 # => [1999, 2000, 2001, 2002, 2003]

 

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