API Reference > imodeljs-frontend > QuantityFormatting > QuantityFormatter > getParserSpecByQuantityType getParserSpecByQuantityType Method Asynchronous Call to get a ParserSpec for a QuantityType. getParserSpecByQuantityType(type: QuantityTypeArg, isImperial?: boolean): Promise<undefined | ParserSpec> Parameter Type Description type QuantityTypeArg One of the built-in quantity types supported. isImperial boolean Argument to specify use of imperial or metric unit system. If left undefined the active unit system is used. Returns - Promise<undefined | ParserSpec> A FormatterSpec Promise. Defined in core/frontend/src/quantity-formatting/QuantityFormatter.ts Line 733 Last Updated: 12 June, 2024