Map

Not ready Yet

See also.
super-stream
super-stream.through
super-stream.each
super-stream.reduce
super-stream.filter
super-stream.junction
super-stream.pipeline

map([options,] [transformFn,] [flushFn]);

some stuff here

var expect = require('chai').expect;
var map = require("super-stream.map")

var streamA = map.obj(function(counter, enc, done){
  counter += 1;
  done(null, counter);
});
var streamB = map({objectMode: true}, function(counter, enc, done){
  counter += 1;
  done(null, counter);
});

var map = map.factory({objectMode: true});

streamA.pipe(streamB).pipe(map(function(counter, enc, done){
  expect(counter).to.be.equal(2);
}));

streamA.write(0);

var streamA = map(function(chunk, enc, done){
  data = chunk.toString();
  done(null, new Buffer(data +'-'+ data));
});

mapObj = map.factory({objectMode: true});
var streamB = mapObj.buf(function(chunk, enc, done){
  expect(chunk.toString()).to.be.equal('myData-myData');
  done();
});
 
streamA.pipe(streamB);
streamA.write(new Buffer('myData'));

map.obj([transfromFn,] [flushFn])

It is a conveniece method for map({objectMode: true}, transformFn, flushFn);
If called without arguments, returns a passthrough Transform

var stream = map.obj(function(string, enc, done){
  expect(string).to.be.deep.equal({data: 'myData'});
  done();
});
stream.write({data: 'myData'});

map.buf([transfromFn,] [flushFn])

It is a conveniece method for map({objectMode: false}, transformFn, flushFn);
If called without arguments, returns a passthrough Transform

// see the factory method.
var map = map.factory({objectMode: true});
var myData = new Buffer('my data');

var streamBuf = map.buf(function(chunk, enc, done){
  expect(chunk).to.be.equal(myData);
  expect(chunk).to.not.be.equal('my data');
  done();
});
streamBuf.write(myData);

map.factory([options]);

A factory method for creating a custom map instance.

var mapObj = map.factory({objectMode: true});

var streamObj = mapObj(function(string, enc, done){
  expect(string).to.be.equal('my data');
  done();
});
streamObj.write('my data');

var myData = new Buffer('my data');
var mapBuf = map.factory({objectMode: false, highWaterMark: 1000*Math.pow(2,6)});

var streamBuf = mapBuf(function(chunk, enc, done){
  expect(chunk).to.be.equal(myData);
  expect(chunk).to.not.be.equal('my data');
  done();
});
streamBuf.write(myData);

License

The MIT License (MIT)

Copyright (c) 2014 Markuz GJ

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.