Transform stream factory to increment streamed numeric data values.
$ npm install flow-addTo create a stream factory,
varaddStream=require('flow-add');// Create a new factory:varaStream=addStream();This method is a setter/getter. If no value is provided, returns the value added to streamed values (a.k.a., the addend); default is 0. To set the value,
aStream.add(100);To create a new addition stream,
varstream=aStream.stream();Methods are chainable.
addStream().add(100).stream().pipe(/* writable stream */);vareventStream=require('event-stream'),aStream=require('flow-add');// Create some data...vardata=newArray(1000);for(vari=0;i<data.length;i++){data[i]=Math.round(Math.random()*10);}// Create a readable stream:varreadStream=eventStream.readArray(data);// Create a new addition stream:varstream=aStream().add(100).stream();// Pipe the data:readStream.pipe(stream).pipe(eventStream.map(function(d,clbk){clbk(null,d.toString()+'\n');})).pipe(process.stdout);To run the example code from the top-level application directory,
$ node ./examples/index.jsUnit tests use the Mocha test framework with Chai assertions.
Assuming you have installed Mocha, execute the following command in the top-level application directory to run the tests:
$ mochaAll new feature development should have corresponding unit tests to validate correct functionality.
Copyright © 2014. Athan Reines.