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 overiterator(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(['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.