[ This description is mirrored from README.md at github.com/danielx/resettable-properties-behavior on 2019-05-22 ]

ResettablePropertiesBehavior

ResettablePropertiesBehavior lets you easily reset polymer element properties to their default values.

ResettablePropertiesBehavior require properties that use this behavior to have a function as their value.

Set resettable to true for properties to reset them with resetProperties.

data: {
  type: Array,
  resettable: true,
  value: function() {
    return [];
  }
}

Optionally set resetGroups to only reset a subset of resettable properties with resetPropertyGroup(group).

data: {
  type: Array,
  resettable: true,
  resetGroups: ['group-name'],
  value: function() {
    return [];
  }
}