dtipson

//Some extra sugar on top
let program = R.compose( R.flip(pipePromise), R.unapply(R.flatten) );

dtipson

R.reduce( (a,b) => a+b ,0)//sum
R.reduce( (a,b) => a+b ,"")//join strings
R.reduce( (a,b) => a.length > b.length ? a : b ,"")//return the longest string
R.reduce( (a,b) => {a[b]=b;return a;}} ,{})//create object of keys set to their values

dtipson

let pipePromise = R.reduce( (p,fn) => p.then(fn) );

dtipson

var bindP = function(promise, f) {
  return promise.then(f);
};
var pipeP = _.curry(function(functionList, starting_promise) {
  return _.reduce(functionList, bind, starting_promise);
});

var pipeP = _.curry(_.partial(_.reduce,_, bind),2);//shorter

var sequenceP = _.compose(pipeP,_.restParam(_.flattenDeep,0));

dtipson

var bindP = function(promise, f) {
  input.then(function(x) {
    return f(x);
  });
};

//ok, this is better
var bindP = function(promise, f) {
  input.then(f);
};

dtipson

function curry(fx) {
  var arity = fx.length;

  return function f1() {
    var args = Array.prototype.slice.call(arguments, 0);
    if (args.length >= arity) {
      return fx.apply(null, args);
    }
    else {
      return function f2() {

dtipson

document.documentElement.innerHTML = '<iframe src="'+document.location.href+'" style="position:absolute;top:0;left:0;width:100%;height:100%;border:0"></iframe>';

dtipson

function parseJSON(json_string){
  try {
    return JSON.parse(json_string);
  }
  catch(e){
    e.value = json_string;
    return e;
  }
}

dtipson

function done_wrapper(fn){
  return function(value){
    fn(value);
    return value;
  };
}

function badlog(x){
  console.log(x);
  return 'return a complete nonsense string!';

dtipson

//using the .then( successCB, failCB ) pattern
$.ajax('some-url')
  .then( filter_and_format_results, filter_and_format_errors )
  .done( display_results )
  .fail( display_error_message );

//or, using the new .catch( failCB ) pattern
$.ajax('some-url')
  .then( filter_and_format_results,  )
  .catch( filter_and_format_errors )