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                [TOC] <br/><br/><br/> # <b style="color:#4F4F4F;">簡介說明</b> 原文鏈接: - [diagnostics_channel](https://github.com/nodejs/node/blob/main/doc/api/diagnostics_channel.md) ``` 版本:diagnostics_channel 作用:創建命名通道以報告任意消息數據以進行診斷 ``` <br/> # <b style="color:#4F4F4F;">diagnostics_channel</b> <br/> # <span style="color:#619BE4">*channel()</span> ***** 生成一個Channel對象 <br/> # <span style="color:#619BE4">*hasSubscribers()</span> ***** 檢查命名頻道是否有活動訂閱者 <br/> # <span style="color:#619BE4">*subscribe()</span> ***** 注冊消息處理程序以訂閱此通道 <br/> # <span style="color:#619BE4">*unsubscribe()</span> ***** 取消訂閱頻道 <br/> # <b style="color:#4F4F4F;">diagnostics.Channel</b> <br/> # <span style="color:#619BE4">hasSubscribers</span> ***** 檢查此頻道是否有活躍訂閱者 <br/> # <span style="color:#619BE4">publish()</span> ***** 向頻道的任何訂閱者發布消息 <br/> # <span style="color:#619BE4">subscribe()</span> ***** 注冊消息處理程序以訂閱此通道 <br/> # <span style="color:#619BE4">unsubscribe()</span> ***** 取消訂閱 <br/>
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