Select the correct answerSuppose list1 is [28, 383, 26, 89, 25], What is list1[:-1]?Options[28, 383, 26, 89][25, 89, 26, 383, 28]25Error
Question
Select the correct answerSuppose list1 is [28, 383, 26, 89, 25], What is list1[:-1]?Options[28, 383, 26, 89][25, 89, 26, 383, 28]25Error
Solution
The correct answer is [28, 383, 26, 89].
Here's why:
In Python, list slicing is used to extract parts of the list. The syntax for list slicing is list[start:stop:step]. If any of these are unspecified, they default to the values start=0, stop=size of list, step=1.
In this case, list1[:-1] means start at the beginning of the list (because start is unspecified), stop 1 element before the end of the list (because -1 is specified for stop), and step through the list one element at a time (because step is unspecified).
So, list1[:-1] will return all elements of the list except for the last one, which is [28, 383, 26, 89].
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