Ember partial getter and setter. A functional style get(this, 'prop') and set(this, 'prop', val) that also supports partial arguments by returning functions when supplied less arguments then required on the first call.

ember-getsetter.js

/**
 * Ember
 *  (more functional style) Getter and Setter
 *
 * setup option 1 (modular):
 *     const {get, set} = getSetterDecorator();
 * setup option 2 (global):
 *     getSetterDecorator( window );
 */
import Ember from 'ember';

export default function getSetterDecorator ( namespace = {}, setKey = 'set', getKey = 'get' ) {
  namespace[ getKey ] = partialEmberGetter;
  namespace[ setKey ] = partialEmberSetter;
  return namespace;
}

/** Getter **/
function partialEmberGetter ( context, property ) {
  if ( arguments.length === 1 ) {
    return (prop) => Ember.get.call( context, context, prop );
  }
  return Ember.get.call( context, context, property );
}

/** Setter **/
function partialEmberSetter ( context, property, value ) {
  switch ( arguments.length ) {
    case 1:
      return function ( ) {
        return partialEmberSetter.apply( context, [context, ...arguments] );
      };
    case 2:
      return ( value ) => Ember.set.call( context, context, property, value );
  }
  return Ember.set.apply( context, arguments );
}