check method

bool check(
  1. String font, [
  2. String text
])

The check() method of the FontFaceSet returns true if you can render some text using the given font specification without attempting to use any fonts in this FontFaceSet that are not yet fully loaded. This means you can use the font specification without causing a font swap.

Implementation

external bool check(
  String font, [
  String text,
]);