**[ This description is mirrored from README.md at [github.com/danielx/resettable-properties-behavior](https://github.com//danielx/resettable-properties-behavior/blob/0.1.2/README.md) on 2019-05-22 ]** [](https://beta.webcomponents.org/element/danielx/resettable-properties-behavior) # 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`. ```javascript data: { type: Array, resettable: true, value: function() { return []; } } ``` Optionally set `resetGroups` to only reset a subset of resettable properties with `resetPropertyGroup(group)`. ```javascript data: { type: Array, resettable: true, resetGroups: ['group-name'], value: function() { return []; } } ```