Learning > ui > core > Utilities Edit this page Utilities The Utilities category in the @bentley/ui-core package includes various utility classes, functions and React hooks for working with a UI. ClassNameProps - Props used by components that expect a CSS class name to be passed in CommonProps - Common props used by components; includes style for CSS properties CommonDivProps - Common properties using a <div> element IconHelper - Icon Helper Class used to store the data needed to generate an <Icon> for use in any control that shows an icon NoChildrenProps - Props used by components that do not expect children to be passed in OmitChildrenProp - Omit children property PointProps - Describes 2d points RectangleProps - Describes 2d bounds SizeProps - Describes 2d dimensions Timer - Notifies handler after a set interval UiCore - Manages the I18N service for the ui-core package useDisposable - Custom hook which creates a disposable object and manages its disposal on unmount or factory method change useEffectSkipFirst - Custom hook which works like useEffect hook, but does not invoke callback when effect is triggered for the first time useOptionalDisposable - Custom hook which calls the factory method to create a disposable object which might as well be undefined. If the result was a disposable object, the hook takes care of disposing it when necessary. API Reference Utilities Last Updated: 12 June, 2024