dart - 如何使用 Dart 语言获取所有子元素的数组？

Question

dart中如何以数组的形式获取类carousel的子元素的类名？？

<div class="carousel">
      <div class="galleryCars">
      ....
      </div>
      <div class="galleryCars2">
      ....
      </div>
      <div class="galleryCars3">
      ....
      </div>
      <div class="galleryCars4">
      ....
      </div>
</div>

Answer 1

以下是获取一组子类名称的方法：

query('.carousel').children.expand((e) => e.classes).toSet();

Answer 2

快速n脏：

var carousel = query(".carousel");
var classList = [];
carousel.children.forEach((childElement) => classList.addAll(childElement.classes));
print(classList); // [galleryCars,galleryCars2,galleryCars3,galleryCars4]