Python: Find the index of the last element in the given list that satisfies a testing function
Python List: Exercise - 235 with Solution
Write a Python program to find the index of the last element in the given list that satisfies the provided testing function.
Sample Solution:
Python Code:
def find_last_index(lst, fn):
return len(lst) - 1 - next(i for i, x in enumerate(lst[::-1]) if fn(x))
print(find_last_index([1, 2, 3, 4], lambda n: n % 2 == 1))
Sample Output:
2
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Python: Tips of the Day
Returns True if the provided function returns True for every element in the list, False otherwise:
Example:
def tips_every(lst, fn=lambda x: x): return all(map(fn, lst)) print(tips_every([2, 4, 3], lambda x: x > 1)) print(tips_every([1, 2, 3]))
Output:
True True
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