yield-thunkify-binary.js

var co = require('co');
var thunkify = require('thunkify');

var asyncMath = function (list, cb) {
  setTimeout(function () {
    cb(null, Math.max.apply(Math, list), Math.min.apply(Math, list));
  }, 500);
};

function binary(fn) {
  return function (a, b) {
    return fn.call(this, a, b);
  }
}

function trimBinary(fn) {
  return function (f) {
    return fn(binary(f));
  }
}

function decoBinary(fn) {
  return function () {
    var f = fn.apply(this, arguments);
    return trimBinary(f);
  }
}

var show = function () { console.log('show'); console.log(arguments); };

var tam = thunkify(asyncMath);
var ttam = decoBinary(tam);


tam([1,4,7])(show);
tam([2,5,8])(binary(show));
ttam([3,6,9])(show);


co(function *() {
  console.log(yield tam([1,2,3,4,5]));
  console.log(yield trimBinary(tam([1,2,3,4,5])));
  console.log(yield ttam([1,2,3,4,5]));
})();