KiaraGrouwstra

// using ES6 Proxy to let Promises/Observables pretend like they're regular values.

// get the mapping function used for async objects
let getMapper = (target) => target instanceof Promise ? 'then' :
    target instanceof Observable ? 'switchMap' : null;
// ^ fails if the Observable is in a local namespace e.g. Rx.Observable

// bind a value to its object if it's a function
let bindFn = (val, obj) => typeof val == 'function' ? val.bind(obj) : val;

akmandev

fabric.Canvas.prototype.getItem = function(id) {
    var object = null,
        objects = this.getObjects();

    for (var i = 0, len = this.size(); i < len; i++) {
        if (objects[i].id && objects[i].id === id) {
            object = objects[i];
            break;
        }
    }

getify

Some things that are "better" with this BetterPromise implementation:

• BetterPromise # then(..) accepts a BetterPromise (or Promise) instance passed directly, instead of requiring a function to return it, so that the promise is linked into the chain.

  var p = BetterPromise.resolve(42);
  
  var q = Promise.resolve(10);
  
  p.then(console.log).then(q).then(console.log);