Append items to an array

Today I came across yet another way to add items to an array in ruby

I already knew about push and <<, but did you know that there's also an append?

[1,2,3].push(4)
# => [1,2,3,4]

[1,2,3] << 4
# => [1,2,3,4]

[1,2,3].append(4)
# => [1,2,3,4]

append is ultimately just an alias for push, but always good to know!