memoize 1.1.0

Returns cached result of function call when inputs were not changed from previous invocation.

Memoize

memoize returns cached result of function call when inputs were not changed from previous invocation.

Examples

memo1 and memo2 compare arguments with == operator:

import 'dart:math';
import 'package:memoize/memoize.dart';

void main() {
  var rect1 = new Rectangle<int>(0, 0, 10, 10);
  var rect2 = new Rectangle<int>(0, 0, 10, 10);
  
  var func = memo1((Rectangle<int> a) => a.width * a.height);

   print(func(rect1));
   print(func(rect2)); // cached result is returned
}

imemo1 and imemo2 compare arguments with identical function:

import 'dart:math';
import 'package:memoize/memoize.dart';

void main() {
  var rect1 = new Rectangle<int>(0, 0, 10, 10);
  var rect2 = new Rectangle<int>(0, 0, 10, 10);
  
  var func = imemo1((Rectangle<int> a) => a.width * a.height);

   print(func(rect1));
   print(func(rect1)); // cached - same object instance
   print(func(rect2)); // not cached - different object instance
}