Test time left: 11:37Select the correct answerSuppose list1 is [28, 383, 26, 89, 25], What is list1[:-1]?
Question
Test time left: 11:37Select the correct answerSuppose list1 is [28, 383, 26, 89, 25], What is list1[:-1]?
Solution
The expression list1[:-1] in Python refers to all elements in the list from the start to the second last element. The -1 in the square brackets refers to the last element in the list, and by including the : before it, Python will slice the list from the start to just before this index.
So, if list1 is [28, 383, 26, 89, 25], then list1[:-1] will be [28, 383, 26, 89]. This new list includes all elements from the start to the second last element of list1.
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