lodash-decorators

As the ES7 decorators proposal start to gain popularity and creep into JS transpilers, it seems like a great time to implement some of the most useful ones provided by lodash and underscore. As currently no environment or transpiler fully supports generators yet, the code in this repo is hypothetical. Babel is planning to release decorators soon (updates to follow).

I've made the most useful set (for this case) of the wrapping functions lodash available as method decorators as shown below.

Example

import {
    after, autobind, before, curry,
    curryRight, debounce, flow, flowRight,
    memoize, negate, once, throttle
} from 'lodash-decorators';
import _ from 'lodash';

class DecoratedClass {
  @after(3)
  after3() {
    this.notifier('After has been called');
  }

  @before(3)
  before3() {
    this.notifier('Before has been called');
  }

  @autobind
  @curry
  curry(a, b, c) {
    this.notifier('Curry called with ', a, b, c);
  }

  @autobind
  @curryRight
  curryRight(a, b, c) {
    this.notifier('curryRight called with ', a, b, c);
  }

  @debounce(1000)
  debounce() {
    this.notifier('Debounce called');
  }

  @flow(_.isString)
  get composed() {
    return Math.random() > 0.5 ? 'string' : null;
  }

  @flowRight(_.isString)
  set compose(isArgString) {
    this.notifier('Compose called with string:', isArgString);
  }

  @memoize
  memoize(a, b) {
    this.notifier('Memoize called with', a, b);
  }

  @negate
  get negate() {
    this.notifier('Getter negate was called');
    return false;
  }

  @once
  get once() {
    this.notifier('Get once was called');
  }

  @once
  set once(a) {
    this.notifier('Set once was called', a);
  }

  @throttle(1000, {leading: false})
  throttle() {
    this.notifier('Throttle was called');
  }

  notifier() {
    console.log(arguments);
  }
}