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Emmet Lowry
10,196 Pointshow do I know what I have removed from the list with pop
In the pop video you assign a name to the variable name_1. It returns Sam . how do I know what is being removed from the list or is it just a random process. Thanks for any help
5 Answers
Dan Johnson
40,533 PointsIf you don't specify an index with pop it will remove the last element in the list:
# Will return 3
[1,2,3].pop()
If you do pass in an index it'll behave as expected:
# Will return 2
[1,2,3].pop(1)
Emmet Lowry
10,196 PointsThank you Dan that wasnt very well explained in the video. One other question what does an index refer to?An item inside the bracket. and how would i insert a item with insert back into a list thx sry for the questions.
Dan Johnson
40,533 PointsYep, it's as if you were selecting it with the brackets:
my_list = [1,2,3]
print("Element at index 1: {}".format(my_list[1]))
print("Popping index 1: {}".format(my_list.pop(1)))
# my_list will now be [1,3]
print("my_list: {}".format(my_list))
Renee Rhodes
10,653 PointsI feel really dumb. which video is the pop video? i'm going back through them and I don't remember seeing it before, and if I did...I can't find it again.
Renee Rhodes
10,653 Pointswell, i feel silly but thanks!
Herb Bresnan
10,658 PointsThank you Dan. I think he skipped over the part where .pop() removes the last item if not specified.