In fact, the class is called CustomEvent.

事实上，这个类称为CustomEvent。

youdao

CustomEvent describes custom events that can be pretty much anything.

CustomEvent描述了自定义事件，可以是几乎任何东西。

youdao

CustomEvent describes custom events that can be pretty much anything.

CustomEvent描述了自定义事件，可以是几乎任何东西。

youdao