Python: Find the value of the first element in the given list that satisfies the provided testing function
Python List: Exercise - 239 with Solution
Write a Python program to find the value of the first element in the given list that satisfies the provided testing function.
Use a list comprehension and next() to return the first element in lst for which fn returns True.
def find(lst, fn): return next(x for x in lst if fn(x)) print(find([1, 2, 3, 4], lambda n: n % 2 == 1)) print(find([1, 2, 3, 4], lambda n: n % 2 == 0))
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Previous: Write a Python program to calculate the average of a given list, after mapping each element to a value using the provided function.
Next: Write a Python program to find the value of the last element in the given list that satisfies the provided testing function.
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Python: Tips of the Day
Chunks a list into smaller lists of a specified size:
from math import ceil def tips_chunk(lst, size): return list( map(lambda x: lst[x * size:x * size + size], list(range(0, ceil(len(lst) / size))))) print(tips_chunk([1, 2, 3, 4, 5, 6], 3))
[[1, 2, 3], [4, 5, 6]]
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