add method Null safety

bool add (
  1. String value
)
inherited

Add the class value to element.

This is the Dart equivalent of jQuery's addClass.

Implementation

bool add(String value) {
  _validateToken(value);
  // TODO - figure out if we need to do any validation here
  // or if the browser natively does enough.
  return modify((s) => s.add(value)) ?? false;
}