如何阻止一个事件运行一次执行两次？

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如何阻止一个事件运行一次执行两次？How to prevent an event from running once and executing twice?

As shown in the figure below, the selected place is a component, which can be judged by clicking the subscript of tab. If you click the latest or the hottest, it will involve the problem of value transfer. The value transfer code is as follows: pass the value to the calling page through the component, and find that the calling page is executed during the initial loading process bind:tabindex= "Clicktab" indicates the event Now, as shown in the figure below, this event has been executed twice: commload, which is the event of loading comments. Then I also called this event when I entered the page, and it was executed twice as soon as I entered the page by printing. The test was obtained by passing the value of this component. Do you have a solution?

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