keyCodeMixin.js

var DEFAULT_SUBMISSION_KEYS = [13, 188];
/**
 * Register a mixin for key events
 */
ZenMixins.registerMixin('keyEvents', {
  /**
   * Decides whether the given event is a keyup for the 'Enter' key.
   *
   * @param event
   * @returns {boolean} - True if the event is keyup on enter key
   */
  keyEventIsEnter: function (event) {
    var code = event.keyCode || event.which;
    return code === 13;
  },
  /**
   * Decides whether the given event is a keyup for the 'comma' key.
   *
   * @param event
   * @returns {boolean} - True if the event is keyup on comma key
   *
   **/
  keyEventIsComma: function (event) {
    var code = event.keyCode || event.which;
    return code === 188;
  },
  /**
   * Decides whether the given event is a keyup for the key whitelisted for submission events.
   *
   * @param event
   * @returns {boolean}
   *
   **/
  keyEventsForTokenSubmission: function (event) {
    var code = event.keyCode || event.which;
    return _.contains(DEFAULT_SUBMISSION_KEYS, code);
  }
});

// Now if we ever need to do some keyup events in some typeahead or an input bar we can use this in views!