supported property Null safety
Checks to see if the mutation observer API is supported on the current platform.
Implementation
static bool get supported {
  return JS(
      'bool', '!!(window.MutationObserver || window.WebKitMutationObserver)');
}
Checks to see if the mutation observer API is supported on the current platform.
static bool get supported {
  return JS(
      'bool', '!!(window.MutationObserver || window.WebKitMutationObserver)');
}