1. DomName('FontFaceSet.has')
  2. DocsEditable()
  3. Experimental()
bool has(FontFace fontFace)

Source 

@DomName('FontFaceSet.has')
@DocsEditable()
@Experimental() // untriaged
bool has(FontFace fontFace) => _blink.BlinkFontFaceSet.instance.has_Callback_1_(this, fontFace);