find_index_of_all python Code Snippet in 2024
listintermediate
Last Updated: 14 December 2024
Finds the indexes of all elements in the given list that satisfy the provided testing function.
- Use
enumerate()and a list comprehension to return the indexes of the all element inlstfor whichfnreturnsTrue.
def find_index_of_all(lst, fn): return [i for i, x in enumerate(lst) if fn(x)]
find_index_of_all([1, 2, 3, 4], lambda n: n % 2 == 1) # [0, 2]
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