@Extend

The @Extend decorator adds new attribute functions to preset components, such as <Text>, <Column>, and <Button>. You can use the @Extend decorator to quickly define and reuse the custom styles of a component.

@Extend(Text) function fancy(fontSize: number) {
  .fontColor(Color.Red)
  .fontSize(fontSize)
  .fontStyle(FontStyle.Italic)
}

@Entry
@Component
struct FancyUse {
  build() {
    Row({ space: 10 }) {
      Text("Fancy")
        .fancy(16)
      Text("Fancy")
        .fancy(24)
    }
  }
}

NOTE: The @Extend decorator cannot be used in the struct definition of a custom component.