I remember when I had to do linked list in c++ without stdlib. Those days are gone!
Python:
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>>> a = [10,20,30,40,20,40,50] >>> a [10, 20, 30, 40, 20, 40, 50] >>> len(a) 7 >>> a.insert(3,"x") >>> a [10, 20, 30, 'x', 40, 20, 40, 50] >>> a.append("y") >>> a [10, 20, 30, 'x', 40, 20, 40, 50, 'y'] >>> a.index("x") 3 >>> a.remove(20) >>> a [10, 30, 'x', 40, 20, 40, 50, 'y'] >>> a.pop() 'y' >>> a [10, 30, 'x', 40, 20, 40, 50] >>> a.count(40) 2 >>> a.sort() >>> a [10, 20, 30, 40, 40, 50, 'x'] >>> a.reverse() >>> a ['x', 50, 40, 40, 30, 20, 10] |
Ruby:
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>> a = [10,20,30,40,20,40,50] => [10, 20, 30, 40, 20, 40, 50] >> a.size => 7 >> a[3,0] = "x" => "x" >> a => [10, 20, 30, "x", 40, 20, 40, 50] >> a << "y" => [10, 20, 30, "x", 40, 20, 40, 50, "y"] >> # when using ruby's delete it will delete all instances of >> a.delete_at(a.index(20)) => 20 >> a => [10, 30, "x", 40, 20, 40, 50, "y"] >> a.pop => "y" >> a => [10, 30, "x", 40, 20, 40, 50] >> # ruby doesn't have anything similar to a.count(40) >> # ruby can't sort when there is int and str. >> # you could turn everything into a str using .to_s and then sort. >> a.delete_at(2) => "x" >> a.sort => [10, 20, 30, 40, 40, 50] >> a.reverse => [50, 40, 20, 40, 30, 10] >> # ruby has a lot more methods on array check the api |