add method
- String value
override
Add the class value
to element.
add and addAll are the Dart equivalent of jQuery's addClass.
If this CssClassSet corresponds to one element. Returns true if value
was added to the set, otherwise false.
If this CssClassSet corresponds to many elements, false
is always returned.
value
must be a valid 'token' representing a single class, i.e. a non-empty string containing no whitespace. To add multiple classes use addAll.
Implementation
bool add(String value);
© 2012 the Dart project authors
Licensed under the Creative Commons Attribution-ShareAlike License v4.0.
https://api.dart.dev/stable/2.13.0/dart-html/CssClassSet/add.html