contains method

bool contains(Object value)

Determine if this element contains the class value.

This is the Dart equivalent of jQuery's hasClass.

Source

bool contains(Object value) {
  if (value is! String) return false;
  _validateToken(value);
  return readClasses().contains(value);
}

© 2012 the Dart project authors
Licensed under the Creative Commons Attribution-ShareAlike License v4.0.
https://api.dartlang.org/stable/1.24.3/dart-svg/AttributeClassSet/contains.html