import { IHtmlEngineHelper, IHandlebarsOptions } from './html-engine-helper.interface'; export class HasOwnHelper implements IHtmlEngineHelper { public helperFunc(context: any, entity, key: any, options: IHandlebarsOptions): string { if (Object.hasOwnProperty.call(entity, key)) { return options.fn(context); } else { return options.inverse(context); } } }