Min list value based on function

OSCC · Python, Math, List · Nov 2, 2020

Returns the minimum value of a list, after mapping each element to a value using the provided function.

  • Use map() with fn to map each element to a value using the provided function.
  • Use min() to return the minimum value.
def min_by(lst, fn):
  return min(map(fn, lst))
min_by([{ 'n': 4 }, { 'n': 2 }, { 'n': 8 }, { 'n': 6 }], lambda v : v['n']) # 2

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