Xah Lee wrote:
> it's funny, in all these supposedly modern high-level langs, they
> don't provide even simple list manipulation functions such as union,
> intersection, and the like. Not in perl, not in python, not in lisps.
Ruby has them.
Intersection:
[2,3,5,8] & [0,2,4,6,8]
==>[2, 8]
Union:
[2,3,5,8] | [0,2,4,6,8]
==>[2, 3, 5, 8, 0, 4, 6]