async-memoizer

async-memoizer

A memoizer for asynchronous methods which obeys node.js conventions (last argument is always a callback).

async-memoizer makes the memoization process external and transparent and keeps the method's asynchronous behaviour by relying on process.nextTick for memoized results..

Usage

var obj = {
  readFile(callback) {
    require('fs').readFile('path/to/file.txt', 'utf8', callback);
  }
};

require('async-memoizer').memoize(obj, 'readFile');

License

Licensed under the MIT license, Copyright 2010 Tobie Langel.