Max list value based on function
Returns the maximum value of a list, after mapping each element to a value using the provided function.
- Use
map()
withfn
to map each element to a value using the provided function. - Use
max()
to return the maximum value.
def max_by(lst, fn): return max(map(fn, lst)) max_by([{ 'n': 4 }, { 'n': 2 }, { 'n': 8 }, { 'n': 6 }], lambda v : v['n']) # 8