Page 37 - Dart Language
P. 37
Chapter 14: List Filters
Introduction
Dart filters lists through the List.where and List.retainWhere methods. The where function takes one
argument: a boolean function that is applied to each element of the list. If the function evaluates to
true then the list element is retained; if the function evaluates to false, the element is removed.
Calling theList.retainWhere(foo) is practically equivalent to setting theList = theList.where(foo).
Examples
Filtering a list of integers
[-1, 0, 2, 4, 7, 9].where((x) => x > 2) --> [4, 7, 9]
Read List Filters online: https://riptutorial.com/dart/topic/10948/list-filters
https://riptutorial.com/ 32
