Test if every list element is truthy

Python, List · Nov 2, 2020

Checks if the provided function returns True for every element in the list.

  • Use all() in combination with map() and fn to check if fn returns True for all elements in the list.
def every(lst, fn = lambda x: x):
  return all(map(fn, lst))

every([4, 2, 3], lambda x: x > 1) # True
every([1, 2, 3]) # True

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