Handling common events is as simple as calling a function like click , submit , or mouseover and passing it an event handler function.

处理常见事件就像调用函数(比方说click 、submit或mouseover)和为其传递事件处理函数一样简单。

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But when you're developing a simple Web application, the complexity of event handling may be more expensive than the cost of additional resources.

但如果您开发的是一个简单的Web应用程序，复杂的事件处理则不仅仅是耗费额外的资源。

youdao

But when you're developing a simple Web application, the complexity of event handling may be more expensive than the cost of additional resources.

但如果您开发的是一个简单的Web应用程序，复杂的事件处理则不仅仅是耗费额外的资源。

youdao