30秒学会 Python 片段 – sum_by
Returns the sum of a list, after mapping each element to a value using the provided function. Use ma...
Returns the sum of a list, after mapping each element to a value using the provided function. Use ma...
Converts a number to a list of digits. Use map() combined with int on the string representation of n...
Flattens a list. Use recursion. Use Iterable.expand() to combine elements into a single list, callin...
Returns all indices in an IList that match the given predicate function, match. Use Enumerable.Range...
Splits values into two groups according to a predicate function, which specifies which group an elem...
Returns the symmetric difference betweend two collections. Use IEnumerable.Except() to only return e...
Returns the first n elements in a collection. Use IEnumerable.Count() to check if the enumerable is ...
Returns a new list with n elements removed from the left. Use List.sublist() to remove the specified...
Generates a list, containing the Fibonacci sequence, up until the nth term. Use List.generate() to g...
Returns every element that exists in any of the two lists once, after applying the provided function...