flowman

 
var flow = require('flowman');
 
var combine = flow.sequential(
    function(input, next){
        setTimeout(function(){
            next(null, input.first, input.family);
        }, 5);
    },
    function(first, family, next){
        setTimeout(function(){
            next(null, first + ', ' + family);
        }, 5);
    });
 
combine({first:'Ling', family:'Chang'}).done(function(name){
    name.should.equal('Ling, Chang');
});