modify method

dynamic modify(dynamic f(Set<String> s))

Helper method used to modify the set of css classes on this element.

f - callback with: s - a Set of all the css class name currently on this element.

After f returns, the modified set is written to the className property of this element.

Source

modify(f(Set<String> s)) {
  Set<String> s = readClasses();
  var ret = f(s);
  writeClasses(s);
  return ret;
}

© 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/modify.html