var es = require('event-stream'); var fms = require('./index.js'); var data = require('./test/data.js'); var startTime = Date.now(); es.readArray(data) .pipe(fms(function(data, callback) { callback(null, data); })) .pipe(es.writeArray(function(err, out) { var endTime = Date.now(); console.log(endTime - startTime); }));