30秒学会 Dart 片段 – symmetricDifferenceBy
Returns the symmetric difference between two lists, after applying the provided function to each lis...
Returns the symmetric difference between two lists, after applying the provided function to each lis...
Returns true if all the elements in values are included in itr, false otherwise. Use Iterable.every(...
Returns a map with the unique values of a list as keys and their frequencies as the values. Use Iter...
Filters out the unique values in a list. Use Iterable.where() in combination with List.indexOf() and...
Flattens a list of lists once. Use nested list comprehension to extract each value from sub-lists in...
Returns the maximum value of a list, after mapping each element to a value using the provided functi...
Returns the sum of a list, after mapping each element to a number using the provided function. Use I...
Returns the difference between two iterables. Create a set from b, then use list comprehension on a ...
Returns the n maximum elements from the provided list. If n is greater than or equal to the provided...
Splits values into two groups. If an element in filter is true, the corresponding element in the col...