import {IPropertyValueDescriptor, PropertyDescriptorParsingType} from '../IPropertyDescriptor'; import {CSSValue, isNumberToken} from '../syntax/parser'; export const opacity: IPropertyValueDescriptor = { name: 'opacity', initialValue: '1', type: PropertyDescriptorParsingType.VALUE, prefix: false, parse: (token: CSSValue): number => { if (isNumberToken(token)) { return token.number; } return 1; } };