npm install co-eachParallel forEach for generators.
Backup some files:
``js
var each = require('co-each');
var fs = require('fs');
var co = require('co');
var files = [
'index.js', 'README.md'
];
co(function* () {
yield each(files, backup);
});
// simple backup function
function backup(path) {
return function(done) {
fs.createReadStream(path)
.pipe(fs.createWriteStream(path + '.bck'))
.on('error', done)
.on('close', done);
};
}
`
For each element in the Array arr, call the generator fn with it and yield
when all are done. Functions are being executed in parallel.
With npm do:
`bash``
npm install co-each
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