eachy

A tiny (19 lines of code) serial async each/map implementation that supports CommonJS, AMD, and VanillaJS. The minified file eachy.min.js is just 303 bytes.

Install

npm

npm install eachy

bower

bower install eachy

Usage

seriesEach(array, iterator, callback)

Arguments

• array - An array to iterate over
• iterator(item, callback, index) - A function called for each item in the array. The callback(err, value) optionally takes an error or data. Data is collected and provided when all iterator functions have finished. The index value is the index of the item in the array.
• callback(err, values) - The callback that is called when all iterator functions are finished or an error occurs. The values argument is an array of values collected from iterator functions. The index of the value in values maps to the index of the item provided to the iterator function.

Examples

Browser (No module loader)

<script src="/js/eachy.js"></script>
<script>
  // seriesEach is a global bound to the window object now
  seriesEach(['hi', 'i love', 'alerts'], function(word, done) {
    alert(word);
    done();
  });
</script> 

Node.js

var seriesEach = require('eachy');
var fs = require('fs');
 
seriesEach(['robots.txt', 'todo.txt'], fs.readFile, function(err, files) {
  files.forEach(function(file) {
    console.log(file);
  });
  console.log('You should have all the information you need now.');
});

The MIT License

Copyright (c) 2015 Michael Maelzer

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.