channel.unsubscribe(onMessage)

• onMessage <Function> 要移除的先前订阅的处理程序
• 返回：<boolean> 如果找到处理程序，则为 true，否则为 false。

移除之前使用 channel.subscribe(onMessage) 在此通道注册的消息处理程序。

【Remove a message handler previously registered to this channel with channel.subscribe(onMessage).】

import diagnostics_channel from 'node:diagnostics_channel';

const channel = diagnostics_channel.channel('my-channel');

function onMessage(message, name) {
  // Received data
}

channel.subscribe(onMessage);

channel.unsubscribe(onMessage);const diagnostics_channel = require('node:diagnostics_channel');

const channel = diagnostics_channel.channel('my-channel');

function onMessage(message, name) {
  // Received data
}

channel.subscribe(onMessage);

channel.unsubscribe(onMessage);拷贝