ember-async-observer-polyfill

Implement's emberjs/rfcs#494 for older Ember versions.

Compatibility

• Completely inert when running Ember 3.13 or higher
• Supports Ember.js 2.12, 2.16, 2.18, 3.4, 3.8, 3.12
• Ember CLI v2.13 or above
• Node.js v10 or above

Installation

ember install ember-async-observer-polyfill

Usage

The best usage guide is the RFC itself emberjs/rfcs#494 but here are a few examples of "before"/"after" to whet your appetite:

Before:

const Person = EmberObject.extend({
  firstName: null,
  lastName: null,

  fullName: computed('firstName', 'lastName', function() {
    return `${this.firstName} ${this.lastName}`;
  }),


  fullNameChanged: observer('fullName', function() {
    // do something :)
  }),
});

After:

const Person = EmberObject.extend({
  firstName: null,
  lastName: null,

  fullName: computed('firstName', 'lastName', function() {
    return `${this.firstName} ${this.lastName}`;
  }),


  fullNameChanged: observer({
    sync: false,
    dependentKeys: ['fullName'],
    fn() {
      // do something :)
    }
  }),
});

Limitations

There are no known limitations, all features described in the RFC are polyfilled.

Contributing

See the Contributing guide for details.

License

This project is licensed under the MIT License.