nanocomponent promise ready

promiseready.js

class MyComponent extends Nanocomponent {
  constructor(config) {
    super();
    this.ready = new Promise((resolve, reject) => {
      this._resolve = resolve;
    })    
  }
  createElement(params) {
    // do stuff
  }
  load (el) {
    this._resolve();
  }
  update () {
    return true;
  }
}

var x = new MyComponent;
x.render();
x.ready.then(() => {
// hooray
})