API Reference > imodeljs-frontend > QuantityFormatting > isTextInputFormatPropEditorSpec isTextInputFormatPropEditorSpec Function Beta TextInputFormatPropEditorSpec type guard. isTextInputFormatPropEditorSpec(item: CustomFormatPropEditorSpec): item is TextInputFormatPropEditorSpec Parameter Type Description item CustomFormatPropEditorSpec Returns - item is TextInputFormatPropEditorSpec Defined in core/frontend/src/quantity-formatting/QuantityFormatter.ts Line 91 Last Updated: 29 November, 2022